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Rajesh February 8, 2008 12:25

Surface roughness
 
Hi

can we have surface roughness and Yplus cell height which is less than the surface roughness cell height for a No slip wall in CFX,is there any best practices.

thanks in advance

Glenn Horrocks February 10, 2008 17:36

Re: Surface roughness
 
Hi,

Numerically it should cause no problems and run fine. Whether it has any physical significance - that is whether it is accurate or not is a matter of debate and probably depends on exactly what you are modelling.

Glenn Horrocks


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