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-   -   Laminar flow and roughness in fluent?? (http://www.cfd-online.com/Forums/fluent/75125-laminar-flow-roughness-fluent.html)

1000sh April 16, 2010 14:42

Laminar flow and roughness in fluent??
 
Hi all I was just wondering if its possible to model roughness with a laminar flow. I have managed to model roughness with a turbulent flow by using the k-epsilon model and setting the near wall treatment as standard wall functions. This has meant that I could define the roughness in the wall boundary conditions.

I was wondering if you could do the same with a laminar flow? If i select the laminar model I cannot define the momentum wall boundary conditions. Can I use the k-epsilon model and have a laminar reynolds number? will it yield the correct results or would they be wrong?

thank you!


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