Wall roughness effect on pressure drops
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.
I think you sliped into the wrong part of the forum. You should try the Ansys part of the forum.
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