ERCOFTAC Classic Collection

case058

tim (tim@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…

cas58-geom.png

tim (tim@undisclosed.example.com) — 2025-09-16T12:54:40+00:00

case083

tim (tim@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 = …

case095

tim (tim@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…

case094

tim (tim@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…

case090

tim (tim@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 \(Ra_{max} = 10^{12}\)\(Ra = (\gamma g \Delta \theta H^3)/(\nu k)\)\(Pr = \nu/k\)\(\Gamma = D/H\)\(Re = (v_m H)/\nu\)\(Nu = (4Hq)/(\lambda \pi D^2\Delta \theta)\)\(\gamma\)\(g\)\(\Delta \theta\)\(\nu\)\(k\)\(D\)\(H\)\(v\)\(q\)\(\lambda\)…

rbc-temperature-data.xlsx - created

tim (tim@undisclosed.example.com) — 2024-05-27T10:15:53+00:00

case095-plots

tim (tim@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.

rbc-res-plot-1.png

tim (tim@undisclosed.example.com) — 2024-05-18T09:14:37+00:00

rbc-res-plot-2.png

tim (tim@undisclosed.example.com) — 2024-05-18T09:14:37+00:00

rbc-g11-ra63e11.dat - created