School of Mechanical Aerospace and Civil Engineering The University of Manchester Centre for Modelling and Simulation Pre launch Meeting Fluids Group: Summaries ...
CFD TM Meeting. Date : May 28th 2008 Venue : George Begg, B8. Participants : All MACE students, researchers academics interested in collaborative developments ...
Useful bash commands To find information about a command just type man command and it will display the parameters and options. To search for a specific ...
Neil: Hybrid numerics case. currently shows hybrid scheme is same as centered. need to test on unstructured mesh, or mesh where there are distinct regions of RANS ...
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Research Project Materials The links below provide some descriptions, results and other material that may be available from past and present research projects. %IF ...
CFD and Turbulence Mechanics Research The links below give details of journal and conference publications, theses, dissertations and other reports published by members ...
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Vacancies and Studentships Details of School Scholarships, and how to apply, are available from the of Mechanical Aerospace and Civil Engineering website.
Welcome to the CfdTm Wiki Welcome to nop TWiki! This is a TWikiSite (pronounced twee kee site ), a meeting place to work on common interests. Anyone can contribute ...
Weekly Group Meeting (GB C21) The weekly meeting takes place every tuesday, from the 27th of May onwards, in the Aquarium. Each time there will be a Chairman and ...
This is an example of use of a Google Visualization API Tool. It loads data stored in a Google SpreadSheet readable by anyone. Other Google Visu. API's can be found ...
Summaries of Current Ph.D. Research Projects Location : GB C21 Time : Afternoon Session (13:30 15:30). Subject : Overview of the current Ph.D. Projects ...
As recently remarked by Sagaut and Deck 1 hybrid RANS/LES techniques are the main strategy to reduce computational cost compared to LES when attached boundary layers ...
It is the purpose of this study to evaluate the characteristics of the generation and propagation of compressible vortex rings in a shock tube where the physical properties ...
Jarrin et al. (2009) developed the Synthetic Eddy Method (SEM) as a quasi particle based method to generate synthetic turbulence conditions for embedded LES. The method ...
Interest in the development of flapping wing air vehicles has prompted a significant amount of research on the kinematics and aerodynamics of flapping flight in nature ...
The reliable computation of buoyant flows is important in a number of engineering sectors, including the nuclear one. Here, turbulent natural convection of air in ...
Inlet Barrier Filter systems (IBF) are an essential piece of hardware in the operation of helicopters to and from unprepared landing sites. They are installed ahead ...
SPH is a relatively new, rapidly evolving Lagrangian meshless method that is currently being applied in a large variety of cases, ranging from astrophysics to nuclear ...
The subject of generating oscillatory motion in fluids operating without moving components is relatively less well known. However, the idea is not new – first oscillators ...
The single dielectric barrier discharge plasma actuators have shown their positive effectiveness amongst the other active flow control methods with the advantageous ...
The optimisation of helicopter design and aerodynamic performance has traditionally been achieved through experimental studies and empirical calculations, but over ...
Hypersonic flight within the atmosphere is of current interest, both military and civilian. Even though it has been become more reachable with the advent of new technologies ...
Experiments conducted in the Advanced Gas cooled Reactor (AGRs) design stages indicate a three dimensional flow swirl present in the in line tube bank section of certain ...
In many experimental and numerical problems, the physical behaviours of a system should be quantified and a configuration for obtaining the optimal condition should ...
Quadrotor helicopters have emerged as a design alternative to conventional helicopter designs for UAV in the range of a few kg. They are envisaged for operations in ...
Open Source Software for engineers Here is a list of the open source software that I am aware of. Please feel free to add any program that you consider relevant. ...
An update of the work done on the Valeo Aerofoil test case for Fred Mendonca of CD adapco, after discussions at the STAR European Conference. The power point goes ...
This presentation includes a rough introduction of transformer structure, transformer thermal solutions and current industry progress about the transformer thermal ...
Any additional information or links can be added here. The presentation was held at department of Mechanical Engineering, Amirkabir University of Technology, as a ...
Any additional information or links can be added here. Awarded the best presentation prize in the Postgraduate Research Conference, School of MACE, the University ...
Any additional information or links can be added here. France Japan joint Seminar on Thermal fatigue, 5th to 6th October 2009, Tokyo, Japan Tokyo meeting knoo ...
Any additional information or links can be added here. Olivier CS results EDF.ppt: ALE in Code Saturne applied to standing and solitary waves in a tank
Rotation and curvature greatly affect a turbulent motion. Basic effects of rotation on turbulence are non linear : two points correlations are modified in such a way ...
Rotation and curvature greatly affect a turbulent motion. Basic effects of rotation on turbulence are non linear : two points correlations are modified in such a way ...
Rotation and curvature greatly affect a turbulent motion. Basic effects of rotation on turbulence are non linear : two points correlations are modified in such a way ...
Rotation and curvature greatly affect a turbulent motion. Basic effects of rotation on turbulence are non linear : two points correlations are modified in such a way ...
Any additional information or links can be added here. The presented file in the propulsion session in the CEAS 2009 European Air and Space Conference, 26 29 October ...
PDF and PPT versions available 04 REVELL.pdf 04 REVELL.ppt This was presented in July 2011 as an invited lecture at the EDF Research event "R D industrielle ...
Last Published Publisher DavidMonfort Date 2011 09 15 09:31 {PublishContrib}{Dir} /home/httpd/twiki/pub/publish/ {PublishContrib}{URL} http://cfd.mace.manchester ...
Analysis of Launder Sharma and k g %$(g \ \alpha \ 1/\omega)$% for a transitional separation bubble using DNS data. A Wilcox transition modification was found to ...
The equations of the most common RANS models are simplified in the near wall region and in the log layer, in the very simple case of a 1D channel flow .
The %$k \epsilon$% models tend to have some difficulty in modelling the reduction in turbulence intensity due to the skewing process: The modelling of a term ...
http://dx.doi.org/doi:10.1016/j.jcp.2008.06.005 Received 21 December 2006; revised 29 January 2008; accepted 9 June 2008. Available online 19 June 2008.
http://dx.doi.org/doi:10.1016/j.ijheatfluidflow.2008.02.010 Received 28 May 2007; revised 15 February 2008; accepted 18 February 2008. Available online 8 April ...
ISBN: 978 1 4020 8577 2. Online version available at http://www.springerlink.com/content/978 1 4020 8577 2 Paper Submitted : 1 October 1, 2007 Online Publication Date ...
Extended version submitted to IJHFF "special issue on selected papers from ETMM7 2008 conference" Jarrin HFF 2008.pdf: Preprint of Jarrin HFF 2008.pdf draft submitted ...
Any additional information or links can be added here.Received 1 July 2008; revised 7 September 2008; accepted 8 September 2008. Available online 10 October 2008 ...
Any additional information or links can be added here. I. J. Heat Fluid Flow, Vol 28, Issue 4, August 2007, pp 561 574Afgan I., Moulinec C., Prosser R., Laurence ...
Any additional information or links can be added here. Benhamadouche S., Laurence D., Jarrin N., Afgan I., Moulinec C. Large Eddy Simulation of flow across in line ...
A linearised turbulent production in the k epsilon model., Guimet V., Laurence D., 5th Engineering Turbulence Modelling and Measurements. Mallorca, Spain. 16 18th ...
Any additional information or links can be added here. Vacancy Pack The paper has also been recommended for the special issue of IAENG Journal and the Best Paper ...
This paper was first archived as an internal EDF R D report with reference: H I83 2011 00185 EN, (same authors and title), (issued) 25 Jan 2011, in Press ...
Any additional information or links can be added here. Presented at 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition ...
Any additional information or links can be added here. Rolfoetal wirewrappedfuelbundle preprint.pdf: Preprint copy submitted to Nuclear Engineering and Desing ...
Full paper available via Springer here: http://www.springerlink.com/content/g206763436175133/ Earlier draft version here: Laurence Uribe Utyu2004 V2F.pdf: (Laurence ...
A modified eddy viscosity model is proposed to model the misalignment between stress and strain fields for variable density flows. The stress strain misalignment is ...
LES or even DNS computation on complex geometries need to use unstructured mesh, in order to keep the mesh size reasonable. This type of grids raises some numerical ...
Summary A new eddy viscosity model is proposed to include stress strain lag effects in the modelling of unsteady mean flows. A transport equation for the lag parameter ...
Fuel rod bundle arranged into a triangular array A fuel rod bundle arranged in a triangular array is investigated using well resolved LES. When the pitch to diameter ...
Developments of the proposed model : BL %$\overline{v^2}/k$% model A new but well validated and truly robust version of an elliptic blending low Reynolds number eddy ...
1 Mixed Convection flows in vertical heated pipes It has been sought to examine a number of advanced, and distinct, Eddy Viscosity RANS Models (EVMs) against experimental ...
1 Introduction As the UK's fleet of Advanced Gas cooled Reactors (AGRs) approach the end of their operational lives, ageing effects must be remediated for a number ...
Transition prediction with popular RANS models The type of transition we are concerned with here is bypass transition (induced by external flow turbulence), which ...
Introduction Why Delayed Detached Eddy Simulation (DDES)? Hybrid RANS LES models have become a viable alternative to RANS and LES methods for solving massively separated ...
Buoyancy flow in square cavity has been taken as a first test case. Effect of three different kind of grids with varying cell densities have been studied to see their ...
\usepackage{graphicx} \usepackage{subfigure} \usepackage dvips {graphics} Dealing with wall boundary conditions is one of the most challenging parts of the SPH ...
Abstract This research is concerned with the wing of the C Class catamaran of Team Invictus, see figure 1. The current wing is a reverse engineered design of a previous ...
GPU Technology GPUs differ from traditional CPUs by having far more 'processing cores' at the expense of having less cache memory. Cache is very fast (and therefore ...
The project started in October 2009 with the supervision of Dr. Alistair Revell and Dr. Tim Craft. To date the following steps has been done: Review of the literature ...
STEP 1 Introduction SEM method, created and implemented by N. Jarrin (2009), is one way used to create inlet conditions for a LES directly from a RANS solution ...
Introduction Fires are unwanted and uncontrolled combustion events that occur everyday around the world and cause immense material damages and loss of life. For example ...
Non isothermal turbulent convection flows are encountered in nature and in many engineering applications involving either buoyancy or thermal stratification. Our focus ...
1.Asymmetric Diffuser (Code Saturne v1.3.3): Different turbulence models are tested for their prediction of the separation region of the flow. 2.Shock Tube (OpenFoam ...
Currently simulations are in progress using different existing scalar dissipation models. These scalar dissipation models vary in complexity and require either algebraic ...
State of the art Grojans and Menter (1998) have developed the "scalable wall function" that allow one to use any mesh preserving the precision of the high Reynolds ...
Research Tools Here are some tools that research students might find useful. Please feel free to add your comments, scripts, examples etc. For a list of all Open Source ...
Saturne Validation page The purpose of this page is to create a pdf report on all the cases that are on the wiki. It uses the plugin : http://cfd.mace.manchester.ac ...
Additional information (links, pictures, etc.) The initial choice of the computational domain is made by examining experimental two point correlations. The computational ...
Aditional information: To run the case just copy the FORTRAN files and modify the lance script accordingly: fotrans v1.3.2.tar: Fortrans and lance script used ...
RANS RESULTS The results are in good agreement with the previous version (see figure 1). In figures 2 and 3 the results for velocity and kinetic energy with the high ...
Additional information (links, pictures, etc.) The experiment has been done with a leading edge slot that covers the entire span of the aerofoil. The total span of ...
DNS You et al 2003.zip: DNS You et al 2003.zip TWiki 4.1.2, Sat, 03 Mar 2007, build 13046 TWiki 4.1.2, Sat, 03 Mar 2007, build 13046 TWiki 4.1.2, Sat, 03 Mar 2007 ...
Discussion. Similarly to the V1.3.0 validation, vertical profile of horizontal velocity is the same for all convection schemes of order 2. The upwind scheme yields ...
Additional information (links, pictures, etc.) To run the case using Code Saturne : Fortran subroutines to be added in the FORT directory: usclim.F, ushist ...
Data available The following data is available for comparison 1 : Pressure coefficient %$Cp (p px) / (0.5 \rho U b^2)$% along the inclined bottom wall and ...
Additional information (links, pictures, etc.) Saturne user subroutines to run the inlet case: inccas.h, usclim.F, ushist.F, usini1.F, usiniv.F, usproj ...
Additional information (links, pictures, etc.) figures 1 5 show the results of the current version compared to the previous. All profiles are in good agreement showing ...
Additional information (links, pictures, etc.) Simulation Details: The simulation was performed over a grid of approximately 5M nodes, covering a spanwise direction ...
Case Setup In this tar file you will find the FORTRANS and the lance script necessary to setup the case under version 1.3.2. fort SST.tar.gz: FORTRANS to set ...
Discussion Simulations consisted in comparing three kinds of turbulent models and the effects of the wall function parameter (ideuch) in the models. Seven simulations ...
Additional information (links, pictures, etc.) Snapshots of instantaneous temperature distribution from different T junction configurations (see references cited above ...
Additional information (links, pictures, etc.) Tjunction.zip: a sample grid FORT 1.3.2.zip: fortran source code to run the case Data CASE1 Straight ...
Additional information (links, pictures, etc.) The case was considered at the 4th ERCOFTAC/IAHR Workshop on Refined Flow Modelling, held at Karlsruhe in 1995. The ...
Additional information (links, pictures, etc.) The analytical inlet profiles are given by: %$ U u^ (\frac{log(1 0.4y^ )}{0.42} 7.8(1 \exp( y^ /11) y^ \exp ...
Discussion The inlet profiles are imposed using the following equations: %$ U u^ (\frac{log(1 0.4y^ )}{0.42} 7.8(1 \exp( y^ /11) y^ \exp( 0.33y^ /11) )$% %$ k ...
Discussion As no modification has been done in the current version of the code (compared to 1.3 version), no mesh sensitivity has been done. The reader can refer to ...
Discussion Comparison of the models Figures (1), (2) and (3) compares the different models %$k \varepsilon$% with and without linear production and %$R {ij} \varepsilon ...
Additional information (links, pictures, etc.) In these calculation, we notice that the size of the cathode region is very important data but it is not well known ...
Additional information (links, pictures, etc.) On the following figures, the comparison between 1.3 and 2.0 models gives identical results, in agreement with the Gaussian ...
Discussion The following figures show two temperature profiles obtained on two location. As a general conclusion, the present results are all similar and close to ...
Additional information (links, pictures, etc.) This test case is dedicated to the verification of the rough law of the wall, with different roughness (in meters). ...
Additional information (links, pictures, etc.) Using options extrag(ipr(iphas)) 1 leads to non convergence of version 2.0 beta2 on this case. For k variables ...
Analysis of the numerical results The analytic results available are given as different profiles for the radiative source term (profiles inside the domain) and the ...
Discussion The simulations have been run on all the production servers at EDF (at the time being), i.e. Calibre 5 and CCRT (Platine). The following graphs show the ...
Additional information (links, pictures, etc.) The simulations show that we recover results of the previous version 1.3.1 from a qualitative and analytical point of ...
Additional information (links, pictures, etc.) Figure 1 Domain geometry Particles parameters As flow parameters, particles characteristics are taken from 1 ...
Additional information (links, pictures, etc.) Two discrepancies between versions 1.3 and 2.0 can be noted in the following results. The first one concerns the inlet ...
Additional information (links, pictures, etc.) Though an error is present in the calculation of the displacement, this does not impair the results presented herebelow ...
Here below are presented the results for the streamwise velocity on the different sections. We can here see that the results between both versions are quite similar ...
Physical forcing Radiative forcing The short wave and long wave radiative forcing were taken into account by adding additional radiative source terms (ustssn.f90 ...
In the following figures 4 to 7 the axial and tangential velocities profiles,respectively, the gas temperature, and the volumetric concentrations of %$CO 2$% and ...
3D visualization mean velocities and turbulent kinetic energy fields: Figure 9: Mean streamwise and spanwise velocity fields and mean turbulent kinetic energy ...
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Edit text Create Edit text Results: Code: Version: Authors: Method and Numerical Options Models Mesh Description of the results files Boundary conditions ...
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