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-   -   Wall roughness effect on pressure drops (http://www.cfd-online.com/Forums/floefd-floworks-flotherm/114546-wall-roughness-effect-pressure-drops.html)

Vangol March 13, 2013 05:31

Wall roughness effect on pressure drops
 
Dear All,

I'm trying to calculate pressure drops in a straight pipe with CFX 14.0.
I simulated two different cases with SST turbulence model:
- in the first case I set Wall Roughness = Smooth Wall on the solid boundary;
- in the second case I set Wall Roughness = Rough Wall (Sand Grain Roughness= 3mm).

In the Post-processing I evaluated the pressure drop for the two cases and it resulted perfectly the same. How it possible?

Thanks in advance.

Boris_M March 20, 2013 05:50

I think you sliped into the wrong part of the forum. You should try the Ansys part of the forum.

Boris


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