roughness in interFoam
 

hi,
I want use Surface roughness in interFoam.Can I do it?????
I have laminar multiphase flow close to wall with Surface roughness. :)

Hello,

I have the same problem about the roughness in interFoam. Specifically, i want to put roughness to the bottom. Did you find the answer to your question? If yes, please let me know.

Regards,
Tasos.

roughness in interFoam
 

Hallo to everyone,

Can anyone tell me how to put roughness in interFoam to the bottom of a dam break tutorial?

Specifically, i have to solve this problem and i only know that the roughness is 2mm.

If anyone has an information which may help me, please let me know!!!

Regards

I think this might help

/Eysteinn

roughness help!
 

Hello all,

In order to put wall-roughness in RANS k-ε model, i put it in nut folder, instead of nutkWallFunction to the walls ,nutkRoughWallFunkion.Is that enough?Do i need to change and another boundary condition in nut folder (or to another folder) in order to put correct the roughness.
In addition, i put the roughness height at Ks.But i don't know what is the Cs coefficient.

Thank you very much for your reply!I have a new question about roughness up here!Do you know the answer :)

I have not used this myself, but there is some information regarding the choice of Cs on page 28 in the paper given in post #36 in the link I posted.

/Eysteinn