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Turbulent Flow, Cell Reynolds and Wall functions

Posted 10 nov. 2016, 11:27 UTC−5 Computational Fluid Dynamics (CFD) 0 Replies

Eugenio Gil
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Hi!

I´m trying to replicate the tutorial for Displacement Ventilation. According to the PDF file a cell Reynolds number of at most 20 means the mesh is appropiate, and in another file from COMSOL it states that wall lift-off values should be 11.06 throughout the whole geometry. Both of these conditions are met for a first approximation of the model, but the real solution doesn´s meet them, with Cell Re in the range of 100´s.

Is this behaviour to be expected when solving turbulent flow models?

Thanks
0 Replies Last Post 10 nov. 2016, 11:27 UTC−5
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Hello Eugenio Gil

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