CFD Online Discussion Forums

CFD Online Discussion Forums (
-   CFX (
-   -   Sand grain roughness? (

DBFIU February 6, 2012 10:55

Sand grain roughness?

I would like to add roughness to a wall, I am not sure what sand grain roughness is trying to represent. Can anyone tell me how this correlates to absolute roughness? If my absolute roughness of my wall is 0.000125 inches what will my sand grain roughness be?


kbs30 February 4, 2015 09:55

Hopefully this helps!! you will need to go thru some literature though.

All times are GMT -4. The time now is 14:45.