|December 16, 2008, 09:42||
Hi, I have a pipe looking l
Join Date: Mar 2009
Posts: 11Rep Power: 9
I have a pipe looking like this:
and its extruded along the flow direction (z-axis).
When I run simpleFoam (3000 Steps) I get k and epsilon but unrealistic values. Also near the boundaries they look strange. k should go back to 0 and epsilon should rise constantly.
I made a simpler case with a 2D channel and a similar mesh. Here the results look quite good.
Any idea what i am doing wrong?
B.c.s for k and epsilon are zeroGradient (similar to the tutorial cases in simpleFoam / turbFoam) and just for the internal field I gave values. I also tried values on inlet but then I get an error message saying I need zeroGradient at inlet patch.
Thanks for your help
|Thread||Thread Starter||Forum||Replies||Last Post|
|Strange boundaries for k and epsilon||henning||OpenFOAM Running, Solving & CFD||4||January 7, 2009 03:54|
|Strange boundaries for k and epsilon||henning||OpenFOAM Running, Solving & CFD||0||December 16, 2008 09:34|
|derivation of epsilon equation of k-epsilon model||Ricardo Rezende||Main CFD Forum||5||May 1, 2007 05:38|
|Strange epsilon||chris1980||OpenFOAM Running, Solving & CFD||6||October 24, 2006 09:05|
|k and epsilon on inlet boundaries||Daniel||CD-adapco||3||February 12, 2002 11:45|