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-   -   MRFSimpleFoam and turbulence models (http://www.cfd-online.com/Forums/openfoam-solving/95466-mrfsimplefoam-turbulence-models.html)

Andrey M. December 19, 2011 10:49

MRFSimpleFoam and turbulence models
 
Hello!

Can anybody explain why did high-Re turbulence models are used in all MRFsimplefoam cases( and even in cases that used GGI) tutorial? If I understand everything clearly than high-Re models used near-wall functions. In there turn, wall functions constructed on idea about exact type of the velocity profile and velocity value below 0 on the surface. If we talk about moving/rotating wall than there is some velocity on it surface and so we can't use near-wall functions, can we?
Please, explain what did I miss in my talk?

be_inspired April 30, 2015 05:40

Some doubt here. I am using OF2.3.x to simulate a wind turbine and strange results are obtained with activating turbulence. k and epsilon over the surface is not real.


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