ERCOFTAC Classic Collection - cases

case001-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Isothermal Dump Combustor With Swirl Sample Data Plots The plots below show profiles of mean swirl and streamwise velocity components, turbulent kinetic energy and shear stress \(\overline{uv}\) at a selection of streamwise locations.

case001

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Isothermal Dump Combustor With Swirl Experiments by Ahmed, Boray and Nejad ---------- Description Isothermal confined swirling and non-swirling flows in a dump combustor. The case is a 2D axisymmetric flow with constant temperature. Geometry of the Computational Domain \(D_i=2R_i =101.6\)\(D=2R=152.4\)\(H\)\(8H\)\(4.3H\)\(S=0.3\)\(3.2H\)\(S=0.5\)\(S=0.5\)\(4.4H\)\(x/H=15\)\(x/H=24\)\(\nu = 1.56 \times 10^{-5}\)\(U_{ref} = 19.2 \pm 0.4\)\(Re = 1.25 \times 10^5\)\(S=0.3\)\(0.4\)\(0.5\)\[ S =…

case002-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

3D Flow in Wedge-Plate Junction Sample Data Plots The plots below show velocity vectors on 4 planes parallel to the wall, but at varying distances, \(y\), from it. The plots below show mean \(U\) velocity and temperature profiles at 4 locations following a streamline along the duct.

case002

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

3D Flow in Wedge-Plate Junction Experiments by Anderson and Eaton ---------- Description Three dimensional thermal boundary layer ahead and on the side of an upstream-facing wedge. The flow is a 3D flow with temperature variation. Geometry The wind-tunnel consists of two parallel planes separated by 11.9 cm with a development section for the preliminary two-dimensional boundary layer and a test-section including the wedge and a heating surface. The geometry is shown in \(x = 7.6\)\(x = 1…

case003-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Plane Wake after a Circular Cylinder Sample Data Plots The plots below show profiles of the dynamic and thermal fields downstream of the cylinder at \(x/d=420\).

case003

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Plane Wake after a Circular Cylinder Experiments by Antonia and Browne ---------- Description Plane turbulent wake downstream of a heated circular cylinder. A 2D flow with temperature as passive scalar. Geometry and Flow Characteristics The wake-generating body is a stainless steel tube of \(d = 2.67\)\(x = 0\)\(y = 0\)\(x/d=-10\)\(x/d = 420\)\(\nu =1.53 \times 10^{-5}\)\(U_e = 6.70\)\(d\)\(Re_d = 1170\)\(x/d = 420\)\(L = 12.3\)\(U_o = 0.36\)\(T_o = 0.82\)\(x/d\)\(U_e\)\(\delta(\overline{v…

case004-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Swirling and Non-Swirling Flow in Curved Pipe Sample Data Plots The plots below show profiles along the horizontal and vertical axes of the pipe of axial and cross-stream velocity components, axial rms velocity and turbulent shear stress at selected locations upstream of the bend, through the bend, and downstream.

case004

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Swirling and Non-Swirling Flows in Curved Pipe Experiments by Anwer and So ---------- Description Swirling and non-swirling flows in a circular cross section pipe made of a 180o bend and two long straight inlet and outlet parts. 3D flow with constant temperature.\(D = 2a = 76.2\)\(R = 495.3\)\(96D\)\(1D\)\(s\)\(s<0\)\(s>0\)\(\theta\)\(s/D=-12\)\(-6\)\(\theta = 112.5^o\)\(s/D = 18\)\(\nu = 1.58 \times 10^{-5}\)\(W_o = 10.4\)\(W_oD/\nu = 5 \times 10^5\)\(s/D = -18\)\(w_{\tau s} = 0.323\)\(\Om…

case005-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Unsteady Boundary Layer Sample Data Plots The plots below show profiles across the boundary layer of mean velocity and Reynolds stress components at three \(x\) locations along the test section.

case005

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Unsteady Boundary Layer Experiments by Brereton, Reynolds, Jayaraman ---------- Description Developing turbulent boundary layer responding to a forced sinusoidal free stream unsteadiness. 2D flow with constant temperature. Geometry of the Computational Domain \( \langle U_{\infty} \rangle = U_o(1-A) + U_oA cos(\omega t)\)\(U_{\infty}\)\(U_o\)\(A\)\(\partial (\langle U_{\infty} \rangle/U_o)/\partial x\)\(A\)\(\nu = 1.1 \times 10^{-6}\)\(U_o = 0.74\)\(x_o\)\(x=0\)\(\delta^* = 6.8\)\(\theta = …

case006-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Square-Section Duct 180 Degree Bend Sample Data Plots The plots below show profiles at different heights across the duct, for a range of angular positions around the bend. The contours below show data provided for use as inlet conditions at \(z/D=-1\)

case006

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Square-Section Duct 180 Degree Bend Experiments by Choi, Moon, Yang ---------- Description Turbulent flow in a square cross-section duct made of a 180o bend and two long straight inlet and outlet parts. 3D flow with constant temperature. Geometry of the Computational Domain \(D \times D = 88.9 \times 88.9\)\(R_c = 3.357D\)\(30D\)\(W_B = 11\)\(W_B\)\(Re = W_B D/\nu = 56,690\)\(U\)\(V\)\(W\)\(k\)\(\varepsilon\)\(1D\)\(\Psi = 0^o\)\(45^o\)\(90^o\)\(135^o\)\(180^o\)\(U/W_B\)\(V/W_B\)\(W/W_B\)\(…

case007-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Circular to Rectangular Transition Duct Sample Data Plots The plots below show radial profiles at the inlet section, \(x/D=-0.5\) of angular positions around the bend. The plots below show profiles along the semi-major and semi-minor axes at the measurement locations \(x/D=1.1\)\(1.4\)\(2.0\)\(3.0\)\(C_P\)\(C_f\)\(x/D=2.0\)\(4.0\)

case007

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Circular to Rectangular Transition Duct Experiments by Davis and Gessner ---------- Description Turbulent flow in a circular to rectangular transition duct. The flow remains wholly attached along the transition. A 3D flow with constant temperature.\(0.5D\)\(D = 2R = 204.3\)\(2D\)\[ \left(y/a \right)^{\eta} + \left( z/b\right)^{\eta} = 1 \]\(a\)\(b\)\(\eta\)\(x\)\(a\)\(b\)\(\eta\)\(T = 298.3\)\(U_b=29.95\)\(\nu =1.57 \times 10^{-5}\)\(Re=U_b D/\nu =3.9 \times 10^5\)\(x/D=-0.5\)\(\delta/R=0.…

case008-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Wing/Body Junction with Separation Sample Data Plots The plots below show profiles on the symmetry plane, \(z=0\), upstream of the wing. The plots below show streamwise velocity profiles and cross-stream velocity vectors at \(x/C=0.18\). The plots below show streamwise velocity profiles and cross-stream velocity vectors at \(x/C=0.75\)\(x/C=1.05\)

case008

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Wing/Body Junction with Separation Experiments by Devenport, Simpson and Fleming ---------- Description Turbulent flow at the junction of a flat surface and a normally-mounted cylindrical wing dominated by the presence of a horseshoe vortex. 3D flow with constant temperature.\(T = 71.7\)\(18.24T\)\(x\)\(U_{ref} = 26.75\)\(x/T = -18.24\)\(z = 0\)\(y/T\)\(U/U_{ref}\)\(\overline{u^2}/U_{ref}^2\)\(\overline{w^2}/U_{ref}^2\)\(\overline{uw}/U_{ref}^2\)\(x/T=-2.146\)\(T\)\(U_{ref}\)\(\delta/T\)\(\…

case009-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Natural Convective Vertical Boundary Layer Sample Data Plots The plot below shows the Nusselt number distribution along the wall for two wall temperature cases. The plots below show mean velocity and temperature profiles across the boundary layer at four locations along the plate.

case009

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Natural Convective Vertical Boundary Layer Experiments by Tsuji and Nagano ---------- Description Turbulent natural convective boundary layer along a vertical heated copper plate. 2D incompressible air flow with temperature and density variation.\(x = 0.8\)\(T_a = 16\)\(\nu = 1.67 \times 10^{-5}\)\(p_a = 1017\)\(T_w = 60\)\(T_w = 100\)\(Pr = 0.71\)\(Gr_x = g(T_w - T_a)x^3/((273. + T_a)\nu^2) = 5.50 \times 10^9 x^3\)\(Nu_x = q_wx/((T_w - T_a)\lambda_w)\)\(q_w\)\(\lambda_w\)\(U_b = (g(T_w - T_…

case010-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Couette Flow with Fixed Wavy Wall Sample Data Plots The plots below show the mean and rms streamwise velocity at eight sections along the channel. In each profile \(y\) represents distance from the wavy wall.

case010

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Couette Flow with Fixed Wavy Wall Experiments by Nakabayashi, Kitoh and Iwata ---------- Description Experimental work has been performed to investigate turbulent Couette-type flow with repeated longditudinal pressure gradients that are realized in a channel consisting of a wavy fixed wall on one side and a moving wall on the other.\(L = 1.4\)\(2h = 15\)\(y = 2h - e\,cos(2\pi x/L)\)\(e = 4.5\)\(x/l\)\(Re=2hU_b/\nu=8000\)\(u^{-1} = (\nu dp/dx)/(\rho (U^*)^3)\)\(x/l\)\(u^{-1}\)\(x=0\)\(U\)\(V\…

case011-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Airfoil Boundary Layer and Wake Sample Data Plots The plot below shows the surface pressure coefficient distribution around the two airfoil models. The plots below show mean velocity and Reynolds stress profiles at five locations (two before the trailing edge, three in the wake) for Model A.

case011

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Airfoil Boundary Layer and Wake Experiments by Nakayama ---------- Description Flows around two different airfoil models: a conventional one at zero incidence and a supercritical one at an angle of attack of 4o, in the same flow conditions. 2D flows at low Mach number.\(C = 24\)\(\approx 610\)\(x/C=0.16\)\(x/C=0.05\)\(U_{ref} = 30.5\)\(Re_C = 1.2\times 10^6\)\(U_{ref} = 30.5\)\(C_p = (p - p_{ref})/(0.5\rho U_{ref}^2)\)\(p_{ref}\)\(\delta(C_p)\)\(\pm 0.03\)\(\delta(\text{second order moments}…

case012-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Vortices in Boundary Layer Sample Data Plots The plots below show contours of streamwise velocity and Reynolds stress, together with cross-stream vectors, at \(x=97\) cm. The plots below show contours of streamwise velocity and Reynolds stress, together with cross-stream vectors, at \(x=188\)

case012

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Vortices in Boundary Layer Experiments by Pauley and Eaton ---------- Description Flow over an initially two-dimensional turbulent boundary layer with longitudinal embedded vortices. 3D flow with constant temperature. Geometry of the Computational Domain \(x = 0\)\(x=200cm\)\(x = 188\)\(0.16 < y < 6.75\)\(0 \le z \le 15\)\(U_e = 16\)\(x=0\)\(x = -53\)\(Re = 1700\)\(\delta(\text{flow angles})\)\(\pm 0.5^o\)\(\delta(\text{velocity vector magnitudes})\)\(\pm 5\%\)\(x\)\(x=97\)\(188\)\(U/U_e\)\…

case013-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Sudden Pipe Expansion Sample Data Plots The graphs below show mean velocity and turbulent kinetic energy profiles upstream of the expansion, at \(x/D=-0.25\). The graphs below show mean velocity and Reynolds stress profiles just downstream of the expansion, at \(x/D=0.05\)

case013

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Sudden Pipe Expansion Experiments by Szczepura ---------- Description Flow of water in a sudden pipe expansion. One of the aims of the experiment was to provide results which shed light upon the limitations of the standard \(k\)-\(\varepsilon\) model for turbulent flows.\(d = 78.3\)\(47d\)\(D = 152.4\)\(4.2D\)\(8.0D\)\(x/D = 1.5\)\(x/D = 2.3\)\(x/D = 1.4\)\(2.2\)\(4 \times 10^5\)\(\overline{u_1u_2}\)\(x/D = 0.35\)\(Re = 2\times 10^5\)\(x/D = -0.25\)\(r/D\)\(U\)\(V\)\(k\)\(\nu_t\)\(\vareps…

case014-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Curved Flow Sample Data Plots The graphs below show the development along the tunnel centreline of the turbulent kinetic energy and the ratios \(\overline{uv}/k\), \(\overline{u^2}/k\) and \(\overline{v^2}/k\) for the six cases.

case014

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Curved Flow Experiments by Holloway and Tavoularis ---------- Description These experiments were carried out in order to study the effects of curvature on sheared turbulence in relative isolation from wall and entrainment effects. Uniformly sheared turbulence was allowed to reach a state of transverse statistical homogeneity in a rectangular straight duct and then passed into a curved duct, also of rectangular cross section.\(S\)\[ S = \frac{(U_c/R_c)}{dU/dn} \]\(U_c\)\(dU/dn\…

case015-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Transitional Cascade Blade Sample Data Plots The graph below shows the \(C_p\) distribution along the blade for the three incidence angles. The graphs below show velocity profiles at selected locations over the suction and pressure surfaces and in the wake for the \(5^o\)\(-8.5^o\)

case015

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Transitional Cascade Blade Experiments by Zierke and Deutsch ---------- Description Flow around a highly loaded compressor blade in cascade at three different incidence angles. 2D flow with constant temperature. Geometry Domain around a double-circular-arc blade.\[ x_p^2 + (y_p + 219.7)^2 = 246.8^2 \]\[ x_s^2 + (y_s + 149.5)^2 = 189.1^2 \]\[ x_c^2 + (y_c + 179.4)^2 = 212.8^2 \]\(0.9144\)\(c=228.6\)\(s=106.8\)\(212.8\)\(\phi=65\)\(\gamma=20.5\)\(c = 228.6\)\(c/s=2.14\)\(0.9144\)\(\nu = 1.5…

case016-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Horizontal Convective Boundary Layer Sample Data Plots The graphs below show non-dimensionalized mean temperature, temperature variance, Reynolds stresses and turbulent heat flux profiles at the three times of \(t^*=6\), \(6.5\) and \(7\).

case016

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Horizontal Convective Boundary Layer LES by Schmidt and Schumann ---------- Description Convective boundary layer in the atmosphere, uniformly heated from below and topped by a layer of uniformly stratified fluid, for zero mean horizontal flow. Results from Large Eddy Simulations.\(X = 8000\)\(= 5z_{io}\)\(x\)\(y\)\(z = 0\)\(z = 2400\)\(= 1.5z_{io}\)\(z_{io}\)\(\nu = 1.5\times 10^5\)\(\rho = 1.43\)\(Q_s = 0.06\)\(T_o = 26.6\)\(z_i\)\(z_{io} = 1600\)\(\beta = 1/300\)\(w^*_o = (\beta gQ_sz_{io…

case017-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Laterally Strained Boundary Layers Sample Data Plots The graphs below show the profiles of the side and top wall along the duct for the laterally converging wall case. The diverging case is the same duct, but reversed. The graphs below show the development of the wall friction coefficient, and boundary layer thickness parameters along the duct centreline for the three cases (2D = flat plate boundary layer, 3C = converging case, 3D = diverging case).

case017

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Laterally Strained Boundary Layers Experiments by Pompeo, Bettelini, Thomann ---------- Description Turbulent boundary layers on a flat surface laterally strained by converging or diverging walls. 3D flow with constant temperature. Geometry of the Computational Domain \(x\)\(\partial W/\partial z(x,0,0)\)\(y=0\)\(z=0\)\(y=0\)\(y\)\(T = 28\)\(U_o = 42\)\(p = 967\)\(\nu = 1.7 \times 10^5\)\(\rho = 1.11\)\(x = 0\)\(\delta = 16\)\(\delta_1 = 2.3\)\(\delta_2 = 1.7\)\(y\)\(z = 0\)\(y\)\(C_p = (p …

case018-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Model Hill Flows Sample Data Plots The graphs below show profiles of mean velocity and Reynolds stresses at a selection of streamwise locations in the isolated single hill case. The graphs below show profiles of mean velocity and Reynolds stresses at a selection of streamwise locations in the periodic hill case.

case018

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Model Hill Flows Experiments by Almeida, Durao, Heitor ---------- Description Flows over 2D polynomial-shaped obstacle(s) mounted on a flat plate with recirculation region in their wake. Two configurations are available, as shown in . In the first configuration, case \(A\)\(B\)\(H = 170\)\(h_{max} = 28\)\(2R = 108\)\(4.5h_{max}\)\(h(x)\)\(\nu = 1\times 10^{-6}\)\(U_o = 2.147\)\(U_oh/\nu = 60,000\)\(U\)\(\overline{u^2}\)\(\overline{v^2}\)\(\overline{w^2}\)\(\overline{uv}\)\(C_f = 0.0027\)…

case019-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer with Adverse Pressure Gradient Sample Data Plots The graphs below show profiles of wall pressure coefficient, and free-stream velocity (derived from the pressure measurements) along the pipe for the three cases reported, over the range of \(x_A\)\(x_E\)\(q_D\)\(x_M\)\(x_A\)\(x_M\)\(x_A\)

case019

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer with Adverse Pressure Gradient Experiments by Gasser and Thomann ---------- Description Two-dimensional incompressible turbulent boundary layers with strong adverse pressure gradients. <[Flow geometry]Flow geometry and test section> The boundary layer develops over the inner wall of an annular pipe of diameter 200 mm. As shown in \(x_M\)\(x_A\)\(x_A\)\(x_M\)\(x_M\)\(x_E\)\(x_M\)\(q_D=P_o - P_D\)\(x_A\)\(q_D\)\(x_A\)\(q_D=600\)\(1000\)\(x_A=-100\)\(0\)\(50\)\(100\)\(200\)\(30…

case020-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flat Plate Transitional Boundary Layers Sample Data Plots The graphs below show the skin friction coefficient development along the plate (left hand graph for aero-pressure-gradient cases, right hand graph for the variable pressure gradient cases).\(C_p\)

case020

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flat Plate Transitional Boundary Layers Experiments by Coupland ---------- Description Flat-plate transitional 2D boundary layers flows with or without pressure gradient. No temperature variations. Free-stream velocity and turbulence intensity vary between \(U_o = 1.2\)\(19.8\)\(Tu_o = 0.9\)\(6.6\)\(C_p\)\(y^+ < 3\)\(U\)\(V\)\(U\)\(W\)\(\overline{uv}\)\(\overline{uw}\)\(u'\)\(x\)\(x\)\(x\)

case021-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Sink-Flow Boundary Layer Sample Data Plots The graph below shows the mean velocity log-plot for the three acceleration cases. The graphs below show the Reynolds stress profiles for the three acceleration cases.

case021

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Sink-Flow Boundary Layer DNS by Spalart ---------- Description The data are from direct numerical simulations of sink-flow boundary layers, with acceleration parameters \(K=(\nu/U_{\infty}^2)(dU_{\infty}/dx)\) between \(1.5\times 10^{-6}\) and \(2.75\times 10^{-6}\). The three-dimensional, time-dependent Navier-Stokes equations are solved numerically using a spectral method.\(170 \times 30 \times 85\)\(x\)\(y\)\(z\)\(8.7\times 10^5\)\(\Lambda_x\)\(\Lambda_z\)\(125\delta^*\)\(25\delta^*\)\(…

case022-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer in and Downstream from Convex Curvature Sample Data Plots The graph below shows the skin friction coefficient development along the wall. The graph below show mean velocity profiles upstream and downstream of the curved section, compared to the standard log-law.

case022

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer In and Downstream from Convex Curvature Experiment by Alving, Smits, Watmuff ---------- Description Developing boundary layer submitted to stabilizing convex curvature at \(Re_{\theta} = 6000\) without longitudinal pressure gradient (\(S = \partial p/\partial x \approx 0\)). A study to examine the flat plate relaxation behaviour of a turbulent boundary layer recovering from 90\(\delta_o/R = 0.08\)\(90\delta_o\)\(\delta_o\)\(\times\)\(R = 300\)\(s\)\(Re_{\theta}\)\(\delta_o\…

case023-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer in a Concave Bend Sample Data Plots For the case with no turbulence-generating grid the graphs below show profiles of mean velocity and Reynolds stresses upstream of the bend (\(x=-56\)cm) and at four stations through the bend.

case023

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer in a Concave Bend Experiments by Johnson ---------- Description Developing boundary layer submitted to destabilizing concave curvature at \(Re_{\theta} = 1450\) without longitudinal pressure gradient (\(S = \partial p/\partial x \approx 0\)). The test facility is a free surface water channel, shown schematically in \(R = -136\)\(y^+ \approx 5\)\(u'\)\(w'\)\(y^+\)\(M = 6.35\)\(M/w = 4\)\(u'/U_{pw} = 0.05\)\(x=-56\)\(x=35.5\)\(15^o\)\(x=71\)\(30^o\)\(x=106.5\)\(45^o\)\(x=142\…

case024-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Stably Curved Mixing Layer Sample Data Plots The plots below show profiles of the total mean velocity, and the Reynolds stress components (using the polar coordinate system) at a selection of angular locations in the curved part of the layer.

case024

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Stably-Curved Mixing Layer Experiments by Castro and Bradshaw ---------- Description As part of a general investigation of complex turbulent flows, extensive one-point measurements have been made of the turbulence structure of the mixing layer bounding a normally impinging plane jet with an irrotational core. The ratio of shear-layer thickness to streamline radius of curvature reaches a maximum of about 0.2, the sense of the curvature being stabilizing. Downstream of the impingement regi…

case025-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Normally Impinging Jet from a Circular Nozzle Sample Data Plots The plots below show profiles of the mean velocity and second moments (plotted against distance from the impingement wall) at a selection of radial locations for the \(H/D=2\), \(Re=23000\) case. The plots below show profiles of the mean velocity and second moments (plotted against distance from the impingement wall) at a selection of radial locations for the \(H/D=2\)\(Re=70000\)\(H/D=6\)\(Re=70000\)

case025

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Normally-Impinging Jet from a Circular Nozzle Experiments by Cooper, Jackson, Launder, Liao, and Baughn and Shimizu ---------- Description The experiments provide an extensive set of measurements of a circular turbulent jet impinging orthogonally onto a large plane surface, as shown in \(2.3\times 10^4\)\(7\times 10^4\)\(x-r\)\(r/D=6\)\(r/D=8\)\(1275\times 975\)\(H/D\)\(r/D\)\(H/D = 2\)\(r/D = 9\)\(r/D = 3\)\(2.3\times 10^4\)\(2.3\times 10^4\)\(7.1\times 10^4\)\(H/D\)\(u'\)\(v'\)\(y\)\(y_{1…

case026-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Single-Stream Swirling Jet in Still Air Sample Data Plots The plots below show development along the jet of the centreline velocity, maximum swirl velocity and jet halfwidth. The plots below show profiles of the mean streamwise and swirl velocity components, and the Reynolds stresses, plotted against normalised distance across the jet, at the six streamwise measurement locations.

case026

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Single-Stream Swirling Jet in Still Air Experiments by Morse ---------- Description Single-stream swirling jet in still air. Swirl number: \(S = G_{\theta}/(RG_{x}) = 0.36\) where \(G_x\) and \(G_{\theta}\) are the axial and angular momentum fluxes, and \(R\) the incoming pipe radius. Exit Reynolds number: \(Re = 56,000\)\(U\)\(V\)\(W\)\(\overline{u_iu_j}\)\(S = 0\)\(S = 0.36\)\(x/D = 6\)\(U\)\(\overline{u^2}\)\(\overline{v^2}\)\(x/D\)\(U\)\(V\)\(W\)\(U\)\(W\)\(U\)\(V\)\(W\)\(U\)\(W\)\(P\)…

case027-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Infinite 35 Degree Swept Wing Sample Data Plots The plot below shows the distribution of wall pressure coefficient along the plate. The plots below show profiles of the mean velocity and Reynolds stress components at a selection of streamwise locations along the plate.

case027

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Infinite 35 Degree Swept Wing Experiments by Van den Berg, Elsenaar, Lindhout, Wesseling ---------- Description This study was undertaken by the authors in order to investigate three-dimensional turbulent boundary layers. A two dimensional boundary layer initially developed on a test plate is subjected to adverse pressure gradient leading to three dimensional separation near the trailing edge of the plate.\(Re_{\theta} = 3290\)\(\times\)\(y=75\)\(x= 0.52\)\(0.62\)\(0.72\)\(0.82\)\(0.92\)\(1.…

case028-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Pseudo-Ekman Boundary Layer Sample Data Plots The plots below show profiles of the mean \(U\) and \(W\) velocities, and the Reynolds stress components, across the boundary layer.

case028

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Pseudo-Ekman Boundary Layer DNS by Spalart ---------- Description In this study, a three dimensional boundary layer is simulated on an infinite flat plate by a time dependent free-stream velocity vector, whose magnitude is independent of time but whose direction, as seen in plan view, changes at a constant angular velocity (see \(Re_1 = U_o(2/(f\nu))^{1/2} = 500\)\(620\)\(767\)\(U_o\)\(f\)\([-\infty,\infty]\times [0,\infty]\times [-\infty, \infty]\)\(x\)\(y\)\(z\)\(y = 0\)\((u, v, w) = 0\)\(…

case029-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Time-Periodic Boundary Layer Sample Data Plots The plot below shows the variation of mean wall shear stress through the periodic cycle. The plots below show profiles of the mean \(U\) velocity, rms \(u'\) and \(v'\), and \(\overline{uv}\) across the boundary layer at a selection of phase times through the cycle.

case029

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Time-Periodic Boundary Layer Experiments by Jensen, Sumer, Fredsoe ---------- Description The data is for turbulent oscillatory boundary-layer flow over a smooth wall. The free-stream flow is a purely oscillating flow with sinusoidal velocity variation. Mean and turbulence properties were measured mainly in two directions, namely in the streamwise direction and in the direction perpendicular to the wall. Some measurements were made also in the transverse direction. The measurements were ca…

case030-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Step with Inclined Opposite Wall Sample Data Plots The plot below shows the variation of wall friction coefficient along the step wall for the \(\alpha=0^o\) and \(6^o\) cases. The plot below shows the variation of pressure coefficient along the step and top walls for the \(\alpha=0^o\)\(6^o\)\(U\)\(\overline{u^2}\)\(\overline{v^2}\)\(\overline{uv}\)\(\alpha=0^o\)\(U\)\(\overline{u^2}\)\(\overline{v^2}\)\(\overline{uv}\)\(\alpha=6^o\)

case030

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Step with Inclined Opposite Wall Experiments by Driver and Seegmiller ---------- Description Experimental data have been obtained in an incompressible turbulent flow over a rearward-facing step in a diverging channel flow. Mean velocities, Reynolds stresses, and triple products that were measured by a laser Doppler velocimeter are presented for two cases of tunnel wall divergence. Eddy viscosities, production, convection, turbulent diffusion, and dissipation (from a balan…

case031-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Step Sample Data Plots The plots below show profiles of the mean \(U\) velocity, rms velocities \(u'\), \(v'\), \(w'\), and shear stress \(\overline{uv}\) at selected streamwise locations.

case031

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Step DNS by Le and Moin ---------- Description Simulation of flow over a backward-facing step. The mean velocity profile obtained from a boundary layer simulation by Spalart (1988) is imposed at the inlet at \(Re_{\theta}= 667\). Random velocity fluctuations \(u'\)\(v'\)\(w'\)\(10h\)\(20h\)\(h\)\(H_1 = 5h\)\(H_2 = 6h\)\(ER\)\(h\)\(U_0\)\(Re_h = 5100\)\(\omega_z\)\(U_0/h\)\(x_R = 6h\)\(x\)\(z\)\(y\)\(W\)\(4h\)\(770 \times 194 \times 66\)\(x/h=-3\)\(4\)\(6\)\(10\)\(15\)\(19\)…

case032-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Channel Flow Sample Data Plots The plots below show profiles of the mean velocity and Reynolds stresses for the two cases available.

case032

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Channel Flow DNS by Kim, Moin, Moser ---------- Description Direct numerical simulation of a turbulent channel flow where all essential scales of motion are resolved. Two cases are reported, one with \(Re \approx 3300\) based on channel half height and centreline velocity, and the other with \(Re \approx 7890\)\(Re_{\tau} = 180\)\(395\)\(\delta\)\(192\times 129\times 160\)\(x\)\(y\)\(z\)\(Re_{\tau}=180\)\(4\pi \delta\)\(2\pi \delta\)\(\Delta x^+ \approx 12\)\(\Delta z^+ \approx 7\)\(y_j = …

case033-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Constant-Pressure Boundary Layer Sample Data Plots The plots below show profiles of the mean velocity and Reynolds stresses for the three values of \(Re_{\theta}\) available.

case033

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Constant-Pressure Boundary Layer DNS by Spalart ---------- Description The turbulent boundary layer on a flat plate, with zero pressure gradient, was simulated numerically at four stations between \(Re_{\theta} = 225\) to \(Re_{\theta} = 1410\). The three-dimensional time-dependent Navier-Stokes equations are solved using a spectral method with up to about 10\(\delta^*\)\(\delta\)\(\theta\)\(y_o\)\(\delta^*\)\(x\)\(x\)\(Re_{\theta}=300\)\(670\)\(1410\)\(Re_{\theta}\)\(Re_{\theta}=300\)\(R…

case034-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Plane Mixing Layer Sample Data Plots The plots below show the profiles of mean and rms streamwise velocity just downstream of the splitter plate. The plots below show the development of the vorticity thickness and momentum thickness of the mixing layer along the channel.\(X=150\)\(200\)\(250\)\(650\)\(800\)\(950\)

case034

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Plane Mixing Layer Experiments by Delville, Bellin, Garem, Bonnet ---------- Description The subsonic turbulent plane mixing layer under investigation has the following characteristics: external velocities of \(U_a = 42.8\) and \(U_b = 25.2\) m/s, fully turbulent co-flowing boundary layers; the test section is \(30\times 30\)\(U_a = 42.8\)\(U_b = 25.2\)\(r = U_b/U_a = 0.6\)\(X\)\(Z\)\(Y\)\(XZ\)\(Y = 0\)\(X=-10\)\(U_{\infty}\)\(\delta\)\(\delta_1\)\(\theta\)\(H\)\(Re_{\theta}\)\(u'/U_{\inft…

case035-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Low Reynolds Number Turbulent Flow Near Wakes Sample Data Plots The plots below show the profiles of mean streamwise velocity, and the \(\overline{u^2}\) and \(\overline{uv}\) Reynolds stress components, at a selection of downstream locations for both the symmetric and asymmetric wake cases.

case035

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Low Reynolds Number Turbulent Flow Near Wakes Experiment by Gough and Hancock ---------- Description Measurements have been made in two low-Reynolds number wakes, one symmetrical and one asymmetrical with a boundary layer thickness ratio of 1.9. \(U_e\theta/\nu)^3\)\(\theta\)\(U_e\)\((U_e\theta/\nu)\)\(t\)\(\delta\)\(U_e\theta/\nu = 600\)\(u_{\tau}\)\(k\)\(\overline{uv}\)\(u'\)\(x=301\)\(x=302\)\(x=303\)\(x=304\)\(x=305\)\(x=306\)\(x=308\)\(x=310\)\(x=315\)\(x=320\)\(x=340\)\(x=380\)\(x=400\…

case036-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Couette Flow with Plane Fixed Wall Sample Data Plots The plots below show the developed mean velocity and Reynolds stress profiles of the fully Poiseuille flow case (no moving wall), and the three cases with a moving wall. The moving wall cases are data from Station 5.

case036

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Couette Flow with Plane Fixed Wall Experiments by Corenflos, Rida, Monnier, Dupont, Dang Tran, Stanislas ---------- Description Flow in a channel, between a plane fixed wall and a plane moving wall as shown in . The distance between the two walls is \(h = 2\delta = 29.7\)\(L = 1.38\)\(\partial U/\partial y\)\(\nu = 1.5 \times 10^5\)\(U_w\)\(U_q\)\(u_{\tau f}\)\(u_{\tau m}\)\(Re_q = U_qh/\nu\)\(Re_w = U_wh/\nu\)\(U_w\)\(u_{\tau m}\)\(u_{\tau f}\)\(x=0\)\(x = -0.235\)\(U/U_q\)\(V/U_q\)\(W/U_…

case037

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Pulsed Channel Flow Experiments by Tardu, Binder, Feng, Vezin, Blackwelder ---------- Description Tardu et al (1994) report measurements in turbulent channel flow with forced oscillations covering a range of frequencies (\(\omega^+ = 0.03-0.0005\)) and amplitudes (10-70 % of centreline velocity). Phase averages of the velocity (\(\)\(<\tau>\)\(\)\(<\tau'\tau'>\)\(2.5l_v\)\(\overline{U}_c = 17.5\)\(\tau\)\(l_s=\sqrt(2\nu/\omega)\)\(\omega=2\pi f\)\(l_s^+=l_s \overline{u}_{\tau}/\nu…

case038-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Circular Air Jet Sample Data Plots The plots below show profiles of mean and rms velocity, and Reynolds shear stress, across the jet at a selection of streamwise locations. Quantities are normalized with the local jet centreline velocity and halfwidth.

case038

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Circular Air Jet Experiments by Anselmet and Fulachier ---------- Description The aim of these experiments is to investigate the development of turbulent axisymmetric jets in the near field region, close to the nozzle exit. A vertical axisymmetric turbulent jet emitted from a fully developed pipe flow, weakly confined in coflowing air, is investigated. Special attention is paid to the near-field region, \(x/D_j \le 20\)\(Mj\)\(D_j= 26\)\(D_e\)\(U_e \approx 1\)\(285 \times 285\)\(110 D_j\)\(…

case039-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Rotating Homogeneous Turbulence in Axisymmetric Contraction Sample Data Plots The plots below show the mean velocity, strain rate and rotation along the duct, together with the development of the Reynolds stress anisotropies (\(a_{ij}=\overline{u_iu_j}/k - 2/3\delta_{ij}\)) and turbulent kinetic energy.

case039

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Rotating Homogeneous Turbulence in Axisymmetric Contraction Experiment by Leuchter and Dupeuble ---------- Description This investigation was carried out by the authors to investigate the effects of rotation on homogeneous anisotropic turbulence by superimposing solid-body rotation on axisymmetric contraction.\(\Omega_o\)\(D\)\(U_o\)\(U_1 = CU_o\)\(C\)\[ R(\xi) = R_o/(1+\beta\xi)^{1/2} \]\(R(\xi)\)\(\xi = x/L\)\(R_o = R(0)\)\(L\)\(\beta = DL/U_o\)\(\beta = C - 1\)\(C\)\(D=24\)\(D=48\)\(\Ome…

case040-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Plane Wake Near a Swept Wing Sample Data Plots The plots below show mean velocity vectors in the \(x\)-\(z\) plane, contours of the mean \(V\) velocity and contours of the turbulent kinetic energy at a selection of \(y\) locations.

case040

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Plane Wake Near a Swept Wing Experiments by Pailhas and Jayaraman ---------- Description Measurements were taken in the wake in the vicinity of a wing-body junction, with a symmetric airfoil at an angle of incidence of 15o, and sweep angle of 22o\(Re_{chord} = 500,000\)\(x\)\(z\)\(y\)\(y\)\(y=10\)\(y=20\)\(y=30\)\(y=40\)\(y=50\)\(y=60\)\(y=70\)\(y=80\)\(y=90\)\(y=100\)

case041-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow around Surface-Mounted Cubical Obstacle Sample Data Plots The plot below shows mean velocity vectors on the geometry centreline. The plots below show profiles of the mean \(U\) velocity, and Reynolds stress components at selected locations along the geometry centreline.

case041

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow around Surface-Mounted Cubical Obstacle Experiments by Martinuzzi and Tropea ---------- Description The flow field around a surface-mounted cube has been investigated, using LDA measurement techniques. The experiments were performed in a fully developed channel flow, so that the incoming flow conditions are well-defined. The Reynolds number, based on the height of the channel, is around \(8\times 10^4\)\(l \times w \times h\)\(H=h/2\)\(U\)\(V\)\(W\)\(\overline{u^2}\)\(\overline{v^2}\)\…

case042-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flows over 3D and 2D Hills Sample Data Plots The plots below show profiles of the mean \(U\) velocity, rms velocities and Reynolds shear stress at three locations along the flat plate. The plots below show profiles of the mean \(U\) velocity, rms \(u'\) velocity and Reynolds shear stress at selected streamwise locations in the axisymmetric hill and 2D ridge cases.\(\chi=CU_{\infty}h^2/Q\)\(Q\)\(\chi=CU_{\infty}h^2/Q\)\(Q\)

case042

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flows over 3D and 2D Hills Experiments by Thompson and Lawson ---------- Description A wind tunnel study was conducted to examine the flowfield and the ground-level scalar concentrations from a variety of scalar source positions (locations and heights) both upstream and downstream of two model hills, an axisymmetric hill (maximum slope 24\[ f(r) = \frac{h+c}{1+(r/L)^4} - c \]\(r\)\(h = 155\)\(L = 388\)\(c = 10\)\(r \le 775\)\(r > 775\)\(f(r)=0\)\(- a < \xi < a\)\[ x = (1/2) \xi \left( 1 +…

case043-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Vortex Shedding Past Square Cylinder Sample Data Plots The plot below shows mean velocity vectors of the flow around the cylinder. The plots below show profiles of the time-averaged mean \(U\) velocity and Reynolds stress components at selected streamwise locations.\(U\)\(V\)\(y\)

case043

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Vortex Shedding Past Square Cylinder Experiment by Lyn and Rodi ---------- Description Ensemble-averaged statistics at constant phase of the turbulent near-wake flow (Reynolds number = 21400) around a square cylinder have been obtained from two-component laser-Doppler measurements.\(Re\)\(-0.5 \leq x/H \le 8\)\(0 \leq y/H \leq 2.5\)\(H = 4\)\(H\)\(U\)\(U = 0.535\)\(U\)\(U\)\(H\)\(Re = 21400\)\(f\)\(St = f H/U = 0.132 \pm 0.004\)\(O(10^4)\)\(x/H = 8\)\(x/H = -3\)\(y/H = 2\)\(y/H = 2.5\)\(y/H…

case044-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Channel Flow with/without Scalar Transport Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds stress components across the channel. The plots below show profiles of the mean scalar, turbulent scalar fluxes, and rms scalar fluctuations across the channel.

case044

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Channel Flow with/without Scalar Transport DNS by Horiuti ---------- Description The flow field is a fully developed two-dimensional turbulent flow between two parallel flat plates as shown in . Passive scalar transport is calculated, with the scalar being uniformly input within the fluid and then removed at both walls. Wall temperatures (the scalar) at the two plates are set equal.\(Re_{\delta} = 3245\)\(Re_{\tau} = 180\)\(Pr = 0.7\)\(x\)\(z\)\(y\)\(12.8\delta\)\(x\)\(6.4\delta\)\(z…

case045-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Channel Flow with/without Thermal Field Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds stress components for the \(Re_{\tau}=100\) case. The plots below show profiles of the mean \(U\) velocity and Reynolds stress components for the \(Re_{\tau}=150\)\(Re_{\tau}=150\)\(Pr=0.71\)\(Re_{\tau}=150\)\(Pr=0.0.25\)

case045

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Channel Flow with/without Thermal Field DNS by Kasagi, Tomita, Kuroda, Ohtsubo ---------- Description The cases here consist of DNS studies of fully developed plane channel flow, as shown in . The dynamic field is reported at two Reynolds numbers (\(Re_{\tau}=100\)\(150\)\(Re_{\tau}\)\(Re_{bulk}\)\(Pr\)\(y\)\(\delta\)\(y = 0\)\(2\)\(Re\)\(u_{\tau}\)\(\delta\)\(Re_{bulk}\)\(v\)\(\omega_y\)\(x\)\(z\)\(Re_{\tau}=150\)\(5\pi\delta\)\(2\pi\delta\)\(x\)\(z\)\(128 \times 128\)\(\Delta x^+ \appro…

case046-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Couette Flow with Plane Fixed Wall Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds stress components for case CP1. The plots below show profiles of the mean \(U\) velocity and Reynolds stress components for case CP2.\(U\)

case046

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Couette Flow with Plane Fixed Wall Direct Numerical Simulations by Kuroda, Kasagi, Hirata ---------- Flow Description Couette-Poiseuille flow in a channel, between a plane fixed wall and a plane moving wall. The mean shear rate on one wall is varied by changing the relative wall velocities and the streamwise pressure gradient, allowing the turbulence statistics and structures under different wall shear rates to be investigated.\(U_w\)\(\nu = 1.5 \times 10^{-5}\)\(U_w\)\(U_q\)\(U_{\tau f}\)\…

case047-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Isotropic Flow with/without Mean Temperature Gradient Sample Data Plots The plots below show the development in time of the Reynolds stresses, turbulent heat flux and temperature variance.

case047

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Isotropic Flow with/without Mean Temperature Gradient Simulation by Iida and Kasagi ---------- Description Direct numerical simulation (DNS) of homogeneous decaying, almost isotropic, turbulence with a mean temperature gradient imposed in one direction was carried out by using a spectral method. Each term in the budget equations of the Reynolds stresses and turbulent heat flux were calculated, together with turbulence spectra and lengthscales.\(L = 2\pi\)\(\nu=1/300\)\(Pr = 0.…

case048-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Isotropic Turbulence Decay of Passive Scalar Fluctuations Sample Data Plots The plots below show the decay in time of the turbulent kinetic energy and temperature variance.

case048

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Isotropic Turbulence Decay of Passive Scalar Fluctuations DNS by Miyauchi and Ishizu ---------- Description Decay of temperature fluctuations in isotropic decaying turbulence was investigated by performing direct numerical simulations using a spectral method. Temperature was treated as a passive scalar, thus, it has no effect on the velocity field. Two cases are reported; for Prandtl numbers \(Pr=0.2\)\(0.71\)\[ \nabla \cdot u = 0 \]\[ \frac{\partial u}{\partial t} = u\times \ome…

case049-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Turbulent Shear Flow Sample Data Plots The plots below show the development in non-dimensional time of the Reynolds stress ratios \(\overline{u_iu_j}/k\), the turbulent kinetic energy and the production to dissipation ratio \(P_k/\varepsilon\).

case049

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Homogeneous Turbulent Shear Flows Direct Numerical Simulation by Matsumoto, Nagano and Tsuji ---------- Description A sheared homogeneous turbulent field is simulated, as shown schematically in . The mean flow is imposed in the \(x\)-direction and is sheared in the \(y\)\(S\)\(Sk_o/\varepsilon_o\)\(St=14\)\(2\pi \times 2\pi \times 2\pi\)\(64\times 64\times 64\)\(x\)\(y\)\(z\)\(E(k)= 8.417\times 10^{-3}k^2\)\(k \le 11\)\(E(k)= 8.417\times 10^{-3}\times (11^{11/3})k^{-5/3}\)\(11 \le k \l…

case050-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer on the Verge of Separation Sample Data Plots The plots below show the development in the streamwise direction of the skin friction, \(C_f\), pressure coefficient, \(C_p\), and boundary layer shape factor, \(H_{12}\). The plots below show profiles of the mean streamwise velocity \(U\)\(\overline{u^2}\)\(\overline{uv}\)

case050

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer on the Verge of Separation Experiments by Dengel and Fernholz ---------- Description The data characterises the behaviour of boundary layers in the vicinity of separation. Three similar flows are studied, each with slightly different pressure distributions resulting in finite regions of small, constant, but different skin frictions: case 1, approximately zero; case 2, slightly positive (\(C_f \approx 0.0001\)\(C_f \approx -0.0001\)\(Re = 10^6\)\(u_d\)\(x\)\(C_p\)\(C_f\)\(U\…

case051-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer in a S-Shaped Channel Sample Data Plots The plot below shows contours of the wall surface pressure coefficient upstream and around the bend section. The plots below show profiles of the mean velocities and Reynolds stresses at selected cross-stream locations (\(Z\)\(X\)

case051

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Boundary Layer in a S-Shaped Channel Experiments by Truong and Brunet ---------- Description The experiment was conducted with the purpose of studying a pressure gradient driven three-dimensional boundary layer, to provide a comprehensive data base to examine critically different turbulence models. There are a number of ways to produce a three-dimensional boundary layer: e.g. by using appropriate curved walls to generate a transverse pressure gradient, by arranging for a local transverse…

case052-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Duct Flows with Smooth and Rough Walls Sample Data Plots The plots below show secondary flow vectors across the two ducts. (Making use of symmetries, a quarter of the square duct is shown, and half of the rectangular one). The plots below show contours of mean streamwise velocity and rms streamwise velocity fluctuations in the two ducts.

case052

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Duct Flows with Smooth and Rough Walls Experiments by Fujita, Hirota, Yokosawa, Hasegawa, Gotoh and Nagata ---------- Description Experimental data is presented for fully developed turbulent flow in square and rectangular ducts with combinations of smooth and roughened walls. Two configurations are included here, as shown in \(6.5\times 10^4\)\(U_1\)\(U_2\)\(U_3\)\(\overline{u_2u_2}\)\(\overline{u_3u_3}\)\(\overline{u_1u_2}\)\(\overline{u_1u_3}\)\(U\)\(V\)\(W\)\(u'\)\(v'\)\(w'\)\(overline{u_…

case053-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Inclined Step Sample Data Plots The plots below show streamlines for a selection of step angles and channel expansion ratios, at Reynolds number of \(Re_H=15000\). The plots below show profiles of the mean and rms streamwise velocity at selected streamwise locations for the channel expansion ratio of \(1.48\)\(Re_H=47000\)\(90^o\)\(1.48\)\(Re_H=47000\)\(25^o\)

case053

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Inclined Step Experiments by Ruck and Makiola ---------- Description The case considered is of flow over an inclined backward-facing step, as shown in . <[Flow configuration]Flow configuration> A number of cases have been considered, with step expansion angles of \(\alpha=10^o\), \(15^o\), \(20^o\)\(25^o\)\(30^o\)\(45^o\)\(90^o\)\(h_2/h_1=1.48\)\(2\)\(3.27\)\(Re_H\)\(ER=2\)\(40H\)\(ER\)\(\alpha\)\(x\)\(x\)\(ER\)\(\alpha\)

case054-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Upslope and Vertical Convective Boundary Layer Sample Data Plots The plots below show profiles of the mean velocity and temperature for both slope angles at selected times during the simulation, demonstrating that an essentially steady state situation is arrived at.

case054

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Upslope and Vertical Convective Boundary Layer Large Eddy Simulation by Schumann ---------- Description Large-eddy simulation has been used to determine the turbulent structure of the steady-state up-slope boundary layer (UBL) which forms at a uniformly heated inclined or vertical plane surface below a stratified atmosphere at rest. The configuration is shown in \(\alpha\)\(\rho\)\(d\theta/dz'\)\(\beta\)\(z_o\)\(Q_s\)\(N=(g \beta\, d\theta/dz')^{1/2}\)\(v^*\)\(H\)\(\theta^*\)\[ v^*= (\beta …

case055-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Plane Turbulent Wall Jet Sample Data Plots The plots below show the streamwise development of the jet maximum velocity, the wall skin friction coefficient, and the jet halfwidth. The plots below show profiles of the normalized mean velocity, rms velocities and Reynolds shear stress at a selection of streamwise locations. Quantities are normalized with the local jet halfwidth and maximum velocity.

case055

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

2D Plane Turbulent Wall Jet Experiments by Karlsson, Eriksson, Persson ---------- Description Laser-Doppler measurements were conducted in a plane turbulent wall jet at a Reynolds number based on inlet velocity, \(Re_o\), of 9600. The initial development, as well as the fully developed flow, was studied. Special attention was given to the near-wall region, including the use of small measuring volumes and the application of specific near-wall data corrections, so that wall shear stresses were…

case056-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Step with Uniform Normal Bleed Sample Data Plots The plots below show the wall static pressure coefficient distribution for the \(U_o=20\) and \(60\) m/s cases. The plot below shows the normalized reattachment length for all cases. The plots below show profiles of the normalized mean velocity, turbulence intensity and Reynolds shear stress at a selection of streamwise locations for the \(U_o=20\)

case056

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Backward-Facing Step with Uniform Normal Bleed Experiments by Yang, Tsai, Tsai ---------- Description The case examines the effect of normal mass bleed into the separated-reattaching flow behind a back-ward-facing step, for a geometry shown in .\(Re = U_oH/\nu = 1.91 \times 10^4\)\(3.82\times 10^4\)\(5.74 \times 10^4\)\(U_o = 20\)\(40\)\(60\)\(Q = 0\)\(180\)\(360\)\(540\)\(U_oH/\nu\)\(1.91\times 10^4\)\(3.82\times 10^4\)\(5.74 \times 10^4\)\(V_s\)\(Q\)\(0.6 H\)\(U_o = 20\)\(X_r\)\(0.05 H\)\…

case057-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

3-Dimensional Boundary Layer Generated by a Spinning Body Sample Data Plots The plots below show the wall skin friction coefficients \(C_{fx}\) and \(C_{fz}\) for three spin ratios in the C cases. The plot below shows the pressure coefficient distribution for various adverse pressure gradient cases.

case057

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

3-Dimensional Boundary Layer Generated by a Spinning Body Experiments by Driver and Johnston ---------- Description Experimental data are given for a three-dimensional, shear-driven, turbulent boundary layer subjected to sudden transverse strain. Measurements made with a three-component laser Doppler velocimeter include all components of mean flow, turbulent Reynolds stresses, and triple-product correlations.\(0.31 \times 0.31\)\(U_e\)\(W_s\)\(U_e = 30\)\(W_s= 0\)\(30\)\(W_s=U_e = 30\)\(U_e…

case058-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Pipe Constriction Sample Data Plots The plots below show profiles of streamwise velocity, rms velocity fluctuations, and Reynolds shear stress at selected streamwise locations for the \(L/d=1\) case. The plots below show profiles of streamwise velocity, rms velocity fluctuations, and Reynolds shear stress at selected streamwise locations for the \(L/d=0.04\)

case058

Anonymous (anonymous@undisclosed.example.com) — 2025-09-16T12:59:47+00:00

Pipe Constriction Experiments by Durst and Wang ---------- Description The flow through a wall-mounted constriction in a pipe was studied, with geometry shown schematically in . Refractive index matching was employed to ensure that velocity measurements could be obtained in all regions inside of measured positions. Laser-Doppler-anemometry was used to obtain quantitative velocity information.\(d\)\(U_{\max}\)\(2.2\times 10^4\)\(D\)\(d\)\(L=1\)\(25\)\(L/d=0.04\)\(1\)\(60 D\)\(36 D\)\(L/d=0…

case059-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Swirling Mixing Layer Sample Data Plots The plots below show profiles of streamwise velocity, Reynolds stress components \(\overline{u^2}\) and \(\overline{uv}\), and swirl velocity at selected streamwise locations for the three cases.

case059

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Swirling Mixing Layer Experiments by Mehta, Wood and Clausen ---------- Description An experimental study has been conducted to investigate the effects of swirl on the streamwise development of an axisymmetric turbulent mixing layer. The flow geometry is shown in \(S=0\)\(0.2\)\(0.4\)\(S = W_{max}/U_o = 0\)\(0.2\)\(0.4\)\(Re_{exit} =U_oR/\nu = 130,000\)\(R = 130\)\(X/R = 0.19\)\(4.62\)\(X = 25\)\(600\)\(\Omega = 0\)\(28.8\)\(57.6\)\(S = 0\)\(0.2\)\(0.4\)\(S = W_{max}/U_o\)\(W\)\(U_o\)\(G_{\…

case060-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Swirling Boundary Layer in a Conical Diffuser Sample Data Plots The plots below show profiles of streamwise and swirl velocity components, and some of the Reynolds stress components, at selected \(x\) locations along the diffuser.

case060

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Swirling Boundary Layer in a Conical Diffuser Experiments by Clausen, Koh and Wood ---------- Description The flow examined is a swirling boundary layer developing in a conical diffuser. The geometry is shown in . The conical diffuser is placed 100 mm downstream of a rotating swirl generator of diameter \(D=260\)\(X=510\)\(\nu = 1.5 \times 10^{-5}\)\(x = -25\)\(U_o = 11.6\)\(U_oD/\nu = 202,000\)\(x = -25\)\(75\)\(25\)\(W_{max}/U_o = 0.59\)\(W_{max}\)\(\tau_{wx}/U_o^2 = 0.00282\)\(x\)\(\tau_…

case061-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Wake of a Streamwise Axially Rotating Cylinder Sample Data Plots The plots below show circumferential profiles of the mean velocities and Reynolds stresses at four radial locations (\(r=0.1\), \(0.08\), \0.06\) and \(0.04\) m) in the \(S^*=0.57\) case at \(x=0.394\) m downstream of the cylinder.

case061

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Wake of a Streamwise Axially Rotating Cylinder Experiments by Wood, Peterson and Clausen ---------- Description Measurements are given in the turbulent wake of a circular cylinder mounted with its axis normal to the free-stream velocity, and rotating about an axis parallel to the streamwise direction, as shown in \(d\)\(39 < x/d < 79\)\(S = \Omega r/U_o\)\(U_o\)\(S\)\(U_o\)\(U\)\(u'\)\(U\)\(U_o\)\(r\)\(x\)\(S^*\)\(S\)\(r=0.1\)\(S^*\)\(U_o\)\(\Omega\)\(r = 0.1\)\(r = 0.08\)\(0.06\)\(0.04\)\(r…

case062-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Developing Flow in a Curved Rectangular Duct Sample Data Plots The plot below shows the wall pressure coefficient on the symmetry plane along the inner and outer walls of the duct. The plots below show the skin friction coefficient around the duct walls at the five measurement locations (U1, U2, 15, 45, 75, D1 and D2).\(U\)\(z\)\(U\)\(W\)

case062

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Developing Flow in a Curved Rectangular Duct Experiments by Kim and Patel ---------- Description The flow considered is a developing turbulent flow in a 90 deg. curved duct of rectangular cross-section. As shown in there is an initial 2D wind tunnel constriction, resulting in a rectangular duct cross-section of width \(H=20.3\)\(6H\)\(7.5H\)\(25.5H\)\(R_i=3H\)\(R_o=4H\)\(4.5H\)\(0.5H\)\(15^o\)\(45^o\)\(75^o\)\(0.5H\)\(4.5H\)\(\nu = 1.45 \times 10^{-5}\)\(U1\)\(x = -4.5H\)\(U_o = 16\)\(U_oH…

case063-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Wing-Body Junction Flow Sample Data Plots The plots below show profiles of the mean \(U\), \(W\) and \(V\) velocities at a selection of the LDV measurement locations. The plots below show profiles of the Reynolds stresses at the same LDV measurement locations.

case063

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Wing-Body Junction Flow Experiments by Ölçmen and Simpson ---------- Description A three dimensional, pressure driven turbulent boundary layer created by a wing-body junction flow was experimentally studied. The geometry is shown in . <[ Flow geometry]Flow geometry> The wing used was a 3:2, semi-elliptical nosed NACA 0020 tailed symmetric profile which has a chord length of 30.5 cm (12 in.), maximum thickness of 7.17 cm (2.824 in.), and height of 22.9 cm (9.016 in.). The wing was mounted …

case064-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow Approaching a Wall-Mounted Cylinder Sample Data Plots The plots below show profiles of the mean velocities at a selection of the measurement locations. The plots below show profiles of the Reynolds stresses at the same measurement locations.

case064

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow Approaching a Wall-Mounted Cylinder Experiments by Dechow and Felsch ---------- Description The data is from experiments that were carried out in a three-dimensional incompressible turbulent boundary layer growing in front of a cylinder standing on a flat wall in a wind tunnel (see \(x\)\(U\)\(U_s\)\(\gamma\)\(\sqrt{\overline{u_s^2}}\)\(\beta\)\(y\)\(U_s\)\(y = 0.2\)\(x\)\(z\)\(x\)\(z\)

case065-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turning Flow Over a Flat Plate Sample Data Plots The plots below show profiles of the mean velocities at a selection of the measurement stations. The plots below show profiles of the Reynolds stresses at the same measurement locations. The plot below shows measured \(C_p\)

case065

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turning Flow Over A Flat Plate Experiment by Müller ---------- Description This test case was performed in order to study the steady incompressible, three-dimensional turbulent boundary layer approaching separation. Turning vanes were used to deflect the flow field external to the boundary layer laterally so that streamwise flow deceleration occurred simultaneously with cross-flow acceleration (see \(Re=1.95 \times 10^6\)\(y\)\(\pm \Delta \beta = 45^o\)\(X_m\)\(Y_m\)\(Z_m\)\(y = 0.1\)\(U_m\)…

case066-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Strained Flow over a Streamwise Axially Rotating Cylinder Sample Data Plots The plots below show profiles of the mean velocities at a selection of the measurement stations for the low Reynolds number cases. The plots below show profiles of the Reynolds stresses at a selection of measurement locations for the high Reynolds number case with cylinder rotation.

case066

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Strained Flow over a Streamwise Axially Rotating Cylinder Experiments by Bissonnette and Mellor ---------- Description Mean velocity and mean turbulent field measurements are performed for the case of a three-dimensional turbulent boundary layer on an axially rotated cylinder, as shown in \(U_e\)\(W_o\)\(U_e\)\(Re\)\(W_o\)\(\Omega\)\(=W_o/U_e\)\(U\)\(W\)\(\Omega = 0\)\(\Omega=1.8\)\(\Omega=0\)\(\Omega=0.936\)\(\overline{u^2}\)\(\overline{w^2}\)\(\overline{uw}\)\(\overline{v^2}\)\(\overline{u…

case067-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow along a Streamwise Axially Rotating Cylinder Sample Data Plots The plots below show profiles of the mean \(U\) and \(W\) velocities, and Reynolds normal stresses, at the six measurement stations.

case067

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow along a Streamwise Axially Rotating Cylinder Experiments by Lohmann ---------- Description The data represent the results of an experimental investigation of the three-dimensional turbulent boundary layer formed when an initially collateral boundary layer encounters local transverse motion of the bounding surface The flow field was generated by permitting the collateral boundary layer to develop on the surface of a cylindrical body with an external flow parallel to its axis and with a r…

case068-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Near-Wake Flow of a V-gutter with Slit Bleed Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds shear stress at selected streamwise locations for the 2 mm and 4 mm gutter slit cases. The plots below show profiles of the rms fluctuating velocities \(u'\)\(v'\)

case068

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Near-Wake Flow of a V-gutter with Slit Bleed Experiments by Yang and Tsai ---------- Description The cold-flow characteristics of a v-shape flame holder with flow bleed from a slit located at the leading edge (as shown in ) have been investigated. A nonsymmetric wake structure is developed behind the symmetric slit v-gutter. The flow through the slit induces greater reverse flow and greater back pressure in the near wake. It also provokes more extensive transport across the shear layers and…

case069-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow over Isolated 2D Hill Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds shear stress at selected streamwise locations for the three hill geometries. The plots below show profiles of the rms fluctuating velocities \(u'\)\(w'\)\(a/H=3\)

case069

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow over Isolated 2D Hill Experiments by Snyder, Khurshudyan and Nekrasov ---------- Description The case is flow over an isolated 2D hill in a neutral boundary layer, as shown schematically in . The free-stream velocity \(U_{\infty} = 4\) m/s. Three hill geometries are considered, each with hill height \(H = 0.117\)\(a/H\)\(|\xi| \le a\)\[ x(\xi) = 0.5\xi \left[ 1 + \frac{a^2}{\xi^2 + m^2 (a^2 - \xi^2)} \right] \]\[ z(\xi) = 0.5m (a^2 - \xi^2)^{1/2} \left[ 1 - \frac{a^2}{\xi^2 + m^2(a^2 …

case070-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow over Isolated 2D Valley Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds shear stress at selected streamwise locations for the three valley geometries. The plots below show profiles of the rms fluctuating velocities \(u'\)\(w'\)\(a/H=3\)

case070

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow over Isolated 2D Valley Experiments by Khurshudyan, Snyder, Nekrasov, Lawson, Thompson and Schiermeier ---------- Description The case consists of flow over an isolated 2D valley in a neutral boundary layer, as shown schematically in . The free-stream velocity \(U_{\infty} = 4\)\(H = 0.117\)\(a/H\)\(|\xi| \le a\)\[ x(\xi) = 0.5\xi \left[ 1 + \frac{a^2}{\xi^2 + m^2 (a^2 - \xi^2)} \right] \]\[ z(\xi) = -0.5m (a^2 - \xi^2)^{1/2} \left[ 1 - \frac{a^2}{\xi^2 + m^2(a^2 - \xi^2)} \right] \]\(…

case071-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Plane Couette Flow Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds stress components across half the channel.

case071

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Plane Couette Flow DNS by Bech, Tillmark, Alfredsson and Andersson ---------- Description The turbulent structure in plane Couette flow at low Reynolds number is studied using data obtained from Direct Numerical Simulation. The geometry is shown in \(Re=U_wh/\nu\)\(L_x\)\(L_z\)\(L_z/h = 4\pi\)\(Re_{\tau}\)\(N_1\times N_2 \times N_3\)\(L_x/h\)\(L_z/h\)\(\Delta x\)\(\Delta z\)\(\Delta y\)\( 256 \times 70 \times 256\)\( 10\pi\)\(4\pi\)\(64 \times 32 \times 64\)\(256 \times 70 \times 2…

case072-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Pipe Flow with Swirl Sample Data Plots The plots below show profiles of the mean \(U\) and \(W\) velocities across the pipe at selected streamwise locations for the two Concentrated Vortex cases. The plots below show profiles of the Reynolds stresses across the pipe at selected streamwise locations for the Concentrated Vortex case at \(Re=500,000\)\(U\)\(W\)\(Re=500,000\)

case072

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Pipe Flow with Swirl Experiments by Steenbergen ---------- Description Water flows along a straight pipe are considered with two types of swirl: “wall jet” (WJ hereafter) and “concentrated vortex” (CV hereafter), as shown in . These names are based on the initial conditions of the measurement series.\(D=70\)\(Re_D=50,000\)\(300,000\)\(D=70\)\(x/D\)\(R\)\(D\)\(U\)\(W\)\(V\)\(Re_D\)\(x/D\)\(x/D=4.3\)\(Re_D=50,000\)\(x/D=55.2\)\(Re=50,000\)\(Re=300,000\)\(x/D=4.3\)\(x/D=7.7\)\(x/D=1…

case073-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flat Plate Transitional Boundary Layer Sample Data Plots The plots below show profiles of the mean \(U\) velocity, rms velocities \(u'\),\(v'\), \(w'\) and Reynolds shear stress \(\overline{uv}\) at four \(x\) locations along the plate.

case073

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flat Plate Transitional Boundary Layer LES by Yang and Voke ---------- Description The case consists of a flat-plate transitional 2D boundary layer flow without pressure gradient, and with no temperature variations. Free-stream velocity: \(U_o=9.6\) m/s. \(Tu_o=5.0\)\[ \nu_s = (\Delta c_s)^2 \sqrt{2s_{ij}s_{ij}} \qquad \nu_e = \nu_s - (2\nu/n)[ 1 - \exp(-n\nu_s/(2\nu)] \]\(c_s=0.1\)\(n=9\)\(Re_x = 6620\)\(200000\)\(L_x^+ = 10138\)\(L_z = 20\)\(L_z^+ = 676\)\(L_y = 30\)\(L_y^+ = 1014\)\…

case074-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Three-Dimensional Boundary Layer and Flow Field Data on an Inclined Prolate Spheroid Sample Data Plots The plots below show the variation of surface pressure coefficient along the spheroid at selected angles around the body for the three cases (\(\phi=0^o\) corresponds to vertically downwards).\(U\)\(U\)\(U\)

case074

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Three-Dimensional Boundary Layer and Flow Field Data of an Inclined Prolate Spheroid H.-P. Kreplin ---------- Description The wind tunnel model consists of a 6:1 prolate spheroid, as shown in and . Several incidence/Reynolds number combinations have been investigated, and data about transition in the 3d boundary layer, development of the boundary layers, 3d boundary layer separation and the separated flow field have been obtained. Measured data are surface pressures, skin friction, and mea…

case075-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow through Axisymmetric Expansions Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds stresses at a selection of streamwise locations for the 14 degree expansion case. The plots below show profiles of the mean \(U\) velocity and Reynolds stresses at a selection of streamwise locations for the 18 degree expansion case.\(U\)

case075

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow through Axisymmetric Expansions Experiments by Stieglmeier, Tropea, Weiser, Nitsche ---------- Description This study examines the flow field in three axisymmetric expansions having diffuser half-angles, \(\alpha\), of 14, 18, and 90 degrees, respectively, as shown in \(Re = 1.56 \times 10^4\)\(U\)\(V\)\(W\)\(\overline{u^2}\)\(\overline{v^2}\)\(\overline{w^2}\)\(\overline{uv}\)\(\overline{uw}\)\(D_1= 2 R_1\)\(D_2=2R_2\)\(D_2/D_1\)\(Re = 1.56 \times 10^4\)\(U_o\)\(z\)\(\pm 100\mu\)\(r\…

case076-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow Over a Wavy Wall Sample Data Plots The plots below show profiles of the mean \(U\) velocity, rms velocities, and Reynolds shear stress, all normalized using the wall friction velocity, at selected streamwise locations.

case076

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow Over a Wavy Wall Experiment by Hudson, Dykhno and Hanratty ---------- Description Measurements of the spatial and time variation of two components of the velocity have been made over a sinusoidal solid wavy boundary (see ) with a height to length ratio of \(2\delta/\lambda =0.10\)\(\alpha^+ = (2\pi/\lambda)(\nu/u^*)=0.02\)\(Re_H=U_bH/\nu = 6760\)\(H\)\(U_b\)\(H = 50.8\)\(L_z = 610\)\(\delta = 2.54\)\(\lambda = 50.8\)\(U =120\)\(Re = U_bH/\nu = 6760\)\(0.05\lambda\)\(2\delta/\lambda = 0…

case077-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Separated Turbulent Flow Over a Wavy Wall Sample Data Plots The plots below show profiles of the mean \(U\) velocity and Reynolds stresses all normalized using the bulk velocity, at selected streamwise locations.

case077

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Separated Turbulent Flow Over a Wavy Wall DNS by Maaß and Schumann ---------- Description The impact of a wavy surface on turbulent flow is investigated by direct numerical simulations. By means of finite differences in terrain following coordinates, the method treats the flow in a plane channel with wavy lower and flat top surface. Both surfaces are smooth. The lower surface wave amplitude is 0.05 and the wavelength is 1 in units of the mean channel height. The Reynolds number in terms o…

case078-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow through Staggered Tube Bundle Sample Data Plots The plots below show profiles of the mean velocities and Reynolds stresses across the gaps between tubes at the three \(x\) locations, \(x=0\), \(11\) and \(16.5\) mm. The plots below show profiles of the mean velocities and Reynolds normal stresses across the gaps between tubes at the two \(y\)\(y=0\)\(22.5\)

case078

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow through Staggered Tube Bundle Experiments by Simonin and Barcouda ---------- Flow Description The case is a nominally two-dimensional isothermal flow through a staggered tube bundle array. The experimental test section consists of 7 horizontal, staggered rows of rods, as shown in \(U\)\(V\)\(\overline{u^2}\)\(\overline{v^2}\)\(\overline{uv}\)\(x=0\)\(11\)\(16.5\)\(y=0\)\(22.5\)\(V_o = 1.06\)\(V_o\)\(U\)\(V\)\(\overline{u^2}\)\(\overline{v^2}\)\(\overline{uv}\)\(x=0\)\(11\)\(16.5\)\(y=…

case079-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Natural Convection in an Enclosed Tall Cavity Sample Data Plots The plots below show profiles of the mean and rms vertical velocity and temperature across the cavity on the mid-span plane at a selection of heights for the lower Raleigh number case, \(Ra=0.86\times 10^6\)\(Ra=1.43\times 10^6\)

case079

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Natural Convection in an Enclosed Tall Cavity Experiments by Betts and Bokhari ---------- Description Experiments have been undertaken to investigate the natural convection of air in a tall differentially heated rectangular cavity (2.18 m high by 0.076 m wide by 0.52 m in depth, shown diagrammatically in the \(0.86\times 10^6\)\(1.43\times 10^6\)\(z=0\)\(y/H\)\(V\)\(v'\)\(U\)\(u'\)\(T\)\(t'\)\(y/H=0.05\)\(y/H=0.10\)\(y/H=0.30\)\(y/H=0.40\)\(y/H=0.50\)\(y/H=0.60\)\(y/H=0.70\)\(y/H…

case080-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Steady Flow Past Tube Bundles Sample Data Plots The plots below show profiles of the mean \(U\) velocity, and rms \(u'\) and \(v'\) velocities at a selection of streamwise locations through the tube bundle for the staggered \(3.6\times 1.6\) case. The plots below show profiles of the mean \(U\)\(u'\)\(v'\)\(3.6\times 2.1\)\(U\)\(u'\)\(v'\)\(3.6\times 2.1\)

case080

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Steady Flow Past Tube Bundles Experiments by S. Balabani ---------- Flow Configuration The experiments were carried out in a purpose-designed tunnel with water at 20oC used as the working fluid. The maximum flowrate was 290 lt/min, corresponding to an upstream bulk velocity, \(U_{bulk}\)\(72 \times 72\)\(\mu\)\(\mu\)\(Re_{g,d}\)\(z/d = 0\)\(0.0 \le y/d \le 1.8\)\(x\)\(Re_{g,d}\)\(U\)\(V\)\(u'\)\(v'\)\(x/d\)\(x/d\)\(U\)\(V\)\(u'\)\(v'\)\(x/d\)\(U\)\(V\)\(u'\)\(v'\)\(U\)\(U\)\(V\)\(V\)\(x/d\…

case081-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow over Periodic Hills Sample Data Plots The plots below show profiles of the mean \(U\) velocity, and Reynolds stresses \(\overline{u^2}\), \(\overline{v^2}\) and \(\overline{uv}\) at selected locations along the geometry.

case081

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow over Periodic Hills LES by Temmerman and Leschziner ---------- Flow Configuration Flow over 2D periodic hills, consisting of polynomial-shaped obstacles mounted on a flat plate with a recirculation region in their wake, as shown in . <[Flow geometry]Periodic hills geometry> The test case is relevant for studying near-wall or/and subgrid-scale modelling in \(h = 28\)\(L_x = 9h\)\(L_y = 3.035h\)\(U_bh/\nu = 10 595\)\(U_b\)\(h\)\(4.5h\)\(y^+\)\(x=0.22h\)\(x=4.72h\)\(U\)\(V\)\(\overline{u…

case082-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow Around a Simplified Car Body (Ahmed Body) Sample Data Plots The plots below show profiles of the mean \(U\) velocity at a selection of streamwise locations on the symmetry plane \(y=0\). The plots below show profiles of the mean \(U\) and rms \(u'\) velocities over the rear sloping end of the body at a selection of streamwise locations on the symmetry plane \(y=0\)\(U\)\(x=0\)\(x=200\)

case082

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Flow Around a Simplified Car Body (Ahmed Body) Experiments by H. Lienhart, S. Becker, C. Stoots ---------- Flow Configuration The experiments were performed in the LSTM low-speed wind-tunnel, which has a cross section of 1.87×1.4 m2. The geometry of the Ahmed body is illustrated in \(15 \times 10^{-6}\)\(U_b = 40\)\(h = 288\)\(Re = 768,000\)\(x=0\)\(y=0\)\(z=0\)\(y\)\(y=0\)\(y=200\)\(y=400\)\(x\)\(z\)\(y\)\(z\)\(y=0\)\(x=-178\)\(y=0\)\(x=-138\)\(y=100\)\(x=-88\)\(y=180\)\(x=-38\)\(y=195\)\(x…

case083-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Wall-Mounted 2-D Hump with Oscillatory Zero-Mass-Flux Jet or Suction through a Slot Sample Data Plots The plot below shows mean wall \(C_p\) profiles for the no-flow-control case, the suction control case, and time-averaged wall \(C_p\) for the oscillatory control case.\(C_p\)\(U\)\(\overline{u^2}\)\(\overline{v^2}\)\(\overline{uv}\)\(U\)\(\overline{u^2}\)\(\overline{uv}\)

case083

Anonymous (anonymous@undisclosed.example.com) — 2024-09-24T12:25:54+00:00

Wall-Mounted 2-D Hump with Oscillatory Zero-Mass-Flux Jet or Suction through a Slot Experiments by Greenblatt, Paschal, Yao, Harris, Schaeffler and Washburn ---------- Description The case is a wall-mounted Glauert-Goldschmidt type body, geometrically similar to that employed by Seifert and Pack (2002). Full details of the current case are given in Greenblatt et al (2004, 2005) and Naughton et al (2004). The model is mounted between two glass endplate frames, as shown in \(x = 0.0\)\(x = …

case084-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Boundary Layer Flow Over a Cube Sample Data Plots The plots below show profiles from the Small wind tunnel of the mean \(U\) velocity and Reynolds stresses in the undisturbed boundary layer for a number of freestream velocities. The plots below show profiles of the mean pressure coefficient \(C_p\)\(y=0\)\(C_p\)\(y=0\)

case084

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Boundary Layer Flow Over a Cube Wind tunnel experiments by Lim, Castro and Hoxey ---------- Flow Configuration Field experiments at Silsoe Research Institute and experiments in two wind tunnels at the University of Southampton (called 'ST' and 'LT' below) were performed. The general tunnel arrangement is shown in \(h=80\)\(240\)\(h=6\)\(1.86 \times 10^4 < U_h h/\nu < 40.6 \times 10^4\)\(\nu = 15 \times 10^{-6}\)\(U_h\)\(z=h\)\(z_o = 0.09\)\(0.35\)\(8\)\(C_p\)\(C_p'\)\(y/h=0\)\(x…

case085-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Stokes Boundary Layer Sample Data Plots The plots below show profiles of the phase-averaged rms \(u'\), \(v'\) and \(w'\) velocities, and the shear stress \(\overline{uw}\), across the boundary layer at a selection of phase angles through the cycle.

case085

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Turbulent Stokes Boundary Layer LES by Salon, Armenio and Crise ---------- Description Large-eddy simulations (LES) are employed to investigate the Stokes boundary layer in the turbulent regime. The flow is driven by an harmonic pressure gradient in the x-direction: \[ \frac{dP}{dx}(t) = -U_o \omega \cos(\omega t) \]\(P\)\(U_o\)\(\omega\)\[ Re_{\delta} = \frac{U_o \delta_s}{\nu} \]\(\delta_s = \sqrt{2\nu/\omega}\)\(\nu\)\(Re_{\delta} = 1790\)\(Re_{\delta}\)\(L_x = 50 \delta_s\)\(L_y = 25 …

case086-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Surface Pressure in Normal Triangular Tube Arrays Sample Data Plots The plots below show profiles of the mean \(C_p\) distribution around the cylinder for the \(P/d=1.32\) and \(1.97\) pitch ratio cases, for a selection of inlet velocities (with zero displacement of the instrumented tube).\(C_p\)\(P/d=1.32\)\(1.97\)\(y/d\)

case086

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Surface Pressure in Normal Triangular Tube Arrays Measurements by Mahon and Meskell ---------- Flow Configuration The experimental facility consists of a draw-down wind tunnel which has a tube array installed in the test section. The test-section is 750mm long with a cross-section of 300mm x 300mm. Three tube arrays were investigated in this study. The configurations tested were five row, normal triangular tube arrays with pitch ratios of 1.32, 1.58 and 1.97 subject to air cross-flow. A …

case087-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Combined Flow and Deflection Measurements of FSI-Induced Oscillation of Two Rigid Structures in Turbulent Flows Sample Data Plots The plot below shows the inlet velocity profile, at \(x=-55\) mm. The plot below show the time-phase trace of the angle of the models through an oscillation period.\(U\)

case087

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Combined Flow and Deflection Measurements of FSI-Induced Oscillation of Two Rigid Structures in Turbulent Flows Experiments by Pereira Gomes and Lienhart ---------- Description Characterisation of the FSI-induced two-dimensional limit-cycle oscillation (LCO) of two rigid structures in pure rotation in uniform flows. The measurements were performed in water at a constant flow velocity of 1.07 m/s.\(\rho_{front body}\)\(2828\)\(\rho_{flat plate}\)\(1475\)\(1475\)\(m\)\(33.4\)\(208.9\)\(I_0\)…

case088-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Combined Flow and Deformation Measurements of FSI-Induced Oscillation of a Bluff Flexible Structures in Uniform Flows Sample Data Plots The plot below shows the inlet velocity profiles for the three cases, at \(x=-55\) mm. The plots below show the time-phase trace of the angle of the front body of the models through an oscillation period (left), and the path mapped out by the trailing edge coordinates during an oscillation (right), for all three cases.\(U\)

case088

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Combined Flow and Deformation Measurements of FSI-Induced Oscillation of a Bluff Flexible Structure in Uniform Flows Experiments by Pereira Gomes and Lienhart ---------- Description Characterisation of the FSI-induced two-dimensional limit-cycle oscillation (LCO) of a flexible structure consisting of a bluff front end in uniform flows. The measurements were performed for different fluid viscosities and approaching flow velocities and covered both laminar and turbulent flow regimes. In tota…

case089-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Torque Scaling in Taylor-Couette Flow Sample Data Plots The plot below shows profiles of the circumferential angular velocity for a range of different inner and outer cylinder rotation rates (\(Re_1\) and \(Re_2\)). The plot below shows profiles of the non-dimensional circumferential angular velocity (\(\omega/\Omega_1\)

case089

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Torque Scaling in Taylor-Couette Flow Experiments by Merbold, Fischer and Egbers ---------- Description The turbulent flow between two concentric cylinders of radii \(R_1\), \(R_2\) and length \(L\), which are rotating independently with the angular velocities \(\Omega_1\) and \(\Omega_2\)\(\eta = R_2/R_1\)\(\Gamma = L/(R_2 - R_1) = L/d\)\(\mu = \Omega_2/\Omega_1\)\(Re_{1,2} = R_{1,2} \Omega_{1,2} d/\nu\)\(\nu\)\(\omega\)\(\omega\)\(T\)\(R_2 = 70 \pm 0.02\)\(R_1 = 35\)\(\eta = 0.5\)\(\Gamma…

case090-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Viscous Boundary Layers in Turbulent Rayleigh-Bénard Convection Sample Data Plots The plots below show profiles of the mean and rms wall-parallel velocity, and rms wall-normal velocity, on the cylinder centreline, from the experimental measurements and \(Ra=3\times 10^9\)\(3\times 10^{10}\)\(Ra\)

case090

Anonymous (anonymous@undisclosed.example.com) — 2024-05-27T10:25:24+00:00

Viscous Boundary Layers in Turbulent Rayleigh-Bénard Convection Experiments and DNS by Li, Resagk, du Puits, Shi, Emran, Schumacher and Thess ---------- Description The velocity field has been studied in a large-scale Rayleigh-Bénard (RB) experiment (called \(Ra_{max} = 10^{12}\)\(Ra = (\gamma g \Delta \theta H^3)/(\nu k)\)\(Pr = \nu/k\)\(\Gamma = D/H\)\(Re = (v_m H)/\nu\)\(Nu = (4Hq)/(\lambda \pi D^2\Delta \theta)\)\(\gamma\)\(g\)\(\Delta \theta\)\(\nu\)\(k\)\(D\)\(H\)\(v\)\(q\)\(\lambda\)…

case091-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Thermal Boundary Layers in Turbulent Rayleigh-Bénard Convection at Aspect Ratios Between 1 and 9 Sample Data Plots The plots below show profiles of the mean and rms non-dimensional temperature on the cylinder centreline, near the cold and heated walls, for a selection of aspect ratios and Rayleigh numbers.

case091

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Thermal Boundary Layers in Turbulent Rayleigh-Bénard Convection at Aspect Ratios Between 1 and 9 Experiments by du Puits, Resagk and Thess ---------- Description Highly resolved temperature measurements are reported in turbulent Rayleigh-Bénard convection in air at a fixed Prandtl number \(Pr = \nu/k = 0.7\)\(\nu\)\(k\)\(\Gamma = D/H\)\(D\)\(H\)\(\Gamma = 1\)\(T_h = 31.2\)\(58.2^o\)\(T_c = 28.8\)\(12.4^o\)\(\Gamma = 1.13\)\(9.00\)\(Ra = (\beta g \Delta \theta H^3)/(\nu k) = 10^{12}\)\(\beta\…

case092-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Measurements and Numerical Determination in Differentially Rotating Wide Gap Taylor-Couette Flow Sample Data Plots The plots below show experimental measurements of the quasi-Nusselt number vs shear Reynolds number, for a range of rotation ratios (left), and the quasi-Nusselt number vs rotation ratio for a selection of shear Reynolds numbers (right).

case092

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Measurements and Numerical Determination in Differentially Rotating Wide Gap Taylor-Couette Flow Experiments and DNS by Merbold, Brauckmann and Egbers ---------- Description Turbulent Taylor-Couette flow with independently rotating cylinders and radius ratio \(\eta = R_2 / R_1 = 0.5\)\(\Gamma = L / (R_2 - R_1) = L / d\)\(L\)\(d\)\(\mu = \Omega_2/ \Omega_1\)\(Re_{1,2} = R_{1,2} \Omega_{1,2} d /\nu\)\(\nu\)\(Re_S = 2 |Re_1 - \eta Re_2 | / (1+\eta) = 2 R_1 R_2 d |\Omega_2 - \Omega_1| / (R_1+R_2…

case093-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

The CoLaPipe-The New Cottbus Large Pipe Test Facility at Brandenburg University of Technology Cottbus-Senftenberg Sample Data Plots The plot below shows mean velocity profiles at the inlet of the pipe (without any tripping) for a range of bulk Reynolds numbers.

case093

Anonymous (anonymous@undisclosed.example.com) — 2024-05-17T22:04:43+00:00

The CoLaPipe-The New Cottbus Large Pipe Test Facility at Brandenburg University of Technology Cottbus-Senftenberg Experiments by König, Zanoun, Öngüner and Egbers ---------- Description The CoLaPipe is a novel test facility at the Department of Aerodynamics and Fluid Mechanics, Brandenburg University of Technology Cottbus-Senftenberg (BTU Cottbus-Senftenberg), set up to investigate fully developed pipe flow at high Reynolds numbers (\(Re_m \le 1.5 \times 10^6\)\(Re_m\)\(L/D = 148\)\(L/D = …

case094-plots

Anonymous (anonymous@undisclosed.example.com) — 2023-07-26T11:34:49+00:00

Local and Time-Resolved Wall Heat Flux in Turbulent Rayleigh-Bénard Convection Sample Data Plots The plots below show sections of the Nusselt number time series at the two measurement stations for a selection of Rayleigh numbers.

case094

Anonymous (anonymous@undisclosed.example.com) — 2024-05-27T10:27:41+00:00

Local and Time-Resolved Wall Heat Flux in Turbulent Rayleigh-Bénard Convection Experiments by du Puits and Hertlein ---------- Description In this data set, we provide direct and time-resolved measurements of the local wall heat flux in turbulent Rayleigh-Bénard convection in air. The measurements have been performed at the heated bottom and the cooled top plate of a large-scale Rayleigh-Bénard experiment which is called \(R=0.45\)\(Ra=8.5\times 10^5\)\(Ra \approx 2.6\times 10^9\)\(Pr=0.7…

case095-plots

Anonymous (anonymous@undisclosed.example.com) — 2024-05-18T09:15:16+00:00

Thermal Boundary Layers in Turbulent Rayleigh-Bénard Convection with Rough and Smooth Surfaces Sample Data Plots The plots below show profiles of mean and rms non-dimensional temperature in the aspect ratio 1.1 case. The plots below show profiles of mean and rms non-dimensional temperature in the aspect ratio 2.9 case.

case095

Anonymous (anonymous@undisclosed.example.com) — 2024-05-27T10:29:14+00:00

Thermal Boundary Layers in Turbulent Rayleigh-Bénard Convection with Rough and Smooth Surfaces Experiments by du Puits ---------- Description In this data set, we provide wall-normal profiles of the mean temperature \(\overline{T}(z)\) (\(z\) is the coordinate perpendicular to the wall) and its fluctuations \(T'(z)\)\(\mu\)\(\mu\)\(Ra=5.4\times 10^9\)\(Ra<9.6\times 10^{11}\)\(\Gamma=1.1\)\(\Gamma=2.9\)\(Pr=0.7\)\[ Ra = \frac{\beta g \Delta T H^3}{\nu \kappa} \qquad\qquad Pr = \frac{\nu}{\kap…