Turbulence-model: OpenFOAM vs Fluent -- CFD Online Discussion Forums

August 2, 2013, 08:38

Turbulence-model: OpenFOAM vs Fluent

Mirage12

Member

Amin

Join Date: May 2013

Posts: 76

Rep Power: 13

I would like to compare the Turbulence-models in OpenFOAM and Fluent.

I used the same mesh and the same boundaries conditions, for this kind of comparison :

The following models were used for Re=3900 :

SpalartAllmaras
kOmegaSST
kEpsilon

Please find the cases here : http://www.workupload.com/file/jTi8N8K

But the results are not at all matching !!!

in the attachment, you find the screen shot of the velocity contours using Fluent.
Could you please explain me, what is the reason of this big difference what is wrong ? what should I change ?

Attached Images

cylinder.jpg (81.2 KB, 94 views)

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