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#1 |
New Member
Miro
Join Date: Aug 2009
Posts: 14
Rep Power: 17 ![]() |
Hi guys,
I have a small problem. I modelled a rectangular channel (b/h=1) and after running icoFoam the results are like analytic solution. Now I want to try to run the same geometry with simpleFoam, my assumption was that the result had to be the same, if the Re=100 in both cases. Know somebody what is my mistake? It is easy now, but for example if in one part of the channel is laminar flow and in the another is turbulent, ...what I have to do...??? How can I run problem like this? ![]() Thanks |
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#2 |
Senior Member
Henrik Rusche
Join Date: Mar 2009
Location: Wernigerode, Sachsen-Anhalt, Germany
Posts: 281
Rep Power: 18 ![]() |
Miroo,
yes, you need to know a-priori whether your flow is turbulent or laminar and select appropriate modeling. Transition and re-laminarisation are research topics. There are many models in the literature, but no general answer. That's the state of the art and a general issue in CFD. Henrik |
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#3 |
New Member
Miro
Join Date: Aug 2009
Posts: 14
Rep Power: 17 ![]() |
Hi Henrik,
your answer was very helpfully (und noch vor allem so schnell). Thank you very much Miro Last edited by Miroo; August 17, 2009 at 18:30. |
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