surface roughness

AbderrahmenBouchhima · September 30, 2017, 06:34

Hi to all

I am modelling a turbulent flow in a pipe. I used the standard K-Epsilon model.In the inlet I used groovy Bc(for the velocity) for turbulent flow. My aim is to see the effect of surface roughness on the velocity profile. So I used nutRoughWallFunction (0/nut) with different values of Ks and Cs but the velocity profile remain the same. I tried nutWallfunction and the result is the same.
coud any one help me with this issue ?
thanks in advanced

kcc49 · April 18, 2018, 11:25

Quote:

Originally Posted by AbderrahmenBouchhima

Hi to all

I am modelling a turbulent flow in a pipe. I used the standard K-Epsilon model.In the inlet I used groovy Bc(for the velocity) for turbulent flow. My aim is to see the effect of surface roughness on the velocity profile. So I used nutRoughWallFunction (0/nut) with different values of Ks and Cs but the velocity profile remain the same. I tried nutWallfunction and the result is the same.
coud any one help me with this issue ?
thanks in advanced

I have the same problem! have you solved the problem?

September 30, 2017, 06:34	surface roughness	#1
AbderrahmenBouchhima New Member AbderrahmenBouchhima Join Date: Aug 2017 Posts: 2 Rep Power: 0	Hi to all I am modelling a turbulent flow in a pipe. I used the standard K-Epsilon model.In the inlet I used groovy Bc(for the velocity) for turbulent flow. My aim is to see the effect of surface roughness on the velocity profile. So I used nutRoughWallFunction (0/nut) with different values of Ks and Cs but the velocity profile remain the same. I tried nutWallfunction and the result is the same. coud any one help me with this issue ? thanks in advanced

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