Material roughness/friction
 

Hi all,

I am simulation a flow inside geometry as attached. I want to find out pressure drop owing contraction/expansion and friction. I am using simpleFoam solver with k-Epsilon turbulence model. My question is how to incorporate material roughness in my model, here material is concrete.

Thanks in advance

Check this out -- a rough wall function : https://github.com/OpenFOAM/OpenFOAM...hScalarField.H.

Caelan

Thanks Caelan for favour.