|January 23, 2013, 05:54||
Possible epsilon influence on k-omega-SST?
Join Date: Aug 2012
Posts: 74Rep Power: 5
from time to time I'm observing an influence of the "epsilon" file on my calculation's convergence, although I'm using the k-omega-SST model.
When doing influence studies I copy my old cases and change only some parameters, like e.g. the inlet flow. When I don't adapt any further files but k and omega, my calculation would crash after several seconds. Then I try to fix it by adapting epsilon to the new inlet flow and everything works fine.
Has anyone ever encountered the same phenomenon? I always wonder if this is even possible - as far as I believe to understand OpenFOAM's turbulence modelling it should not?
The solver in use is sprayFoam and YES, I am sure that the turbulence model is set to k-omega-SST.
Best regards, Robert
|January 23, 2013, 06:32||
Join Date: Oct 2012
Posts: 2,209Rep Power: 18
i had a problem like you but somewhat different.in my case an error always displayed on R folder(my turbulence model is kOmegaSST too) when i deleted it never that error displayed.
I have a question like you.why these folders affect others when they should not be used?
|Thread||Thread Starter||Forum||Replies||Last Post|
|SimpleFoam k and epsilon bounded||nedved||OpenFOAM Running, Solving & CFD||13||November 4, 2013 15:13|
|why omega instead of epsilon in turbulence modeling||pgoyal10||Main CFD Forum||1||May 5, 2012 11:02|
|overshooting of Omega in SST komega using simpleFoam||cm_jubayer||OpenFOAM||1||August 26, 2011 13:18|
|Boundary Conditions for k omega SST||dancfd||OpenFOAM Pre-Processing||0||June 9, 2011 23:25|
|SimpleFoam k and epsilon bounded||nedved||OpenFOAM Running, Solving & CFD||1||November 25, 2008 21:21|