|May 5, 2010, 09:25||
particular omega residual behavior
Join Date: Feb 2010
Posts: 8Rep Power: 7
is there anyone who can help me to understand this particular omega residual behavior? I’ve already seen it in other cases with the same geometry and I think this problem is somehow connected with the volume mesh. Omega residual suddenly goes to 7.9993e-01 even after 1200 iterations and it doesn't move from that value.
Let’s say that I’m analyzing a wing in a wind tunnel. I’ve chosen a k-w-SST viscous model with pressure inlet/outlet boundary conditions. The model normally has 5/6 million elements and the mesh is obtained using TGrid. I use FLUENT in parallel mode.
The main problem is: is the solution still valid or is it better to throw it away? How can I solve the problem? Thanks for the help.
I've just changed the URF from 0.8 (that is 7.9993e-01) to 0.001 and the omga residual is now 9.9991e-04. What does it mean?
Last edited by Feitan; May 5, 2010 at 10:07.
|Thread||Thread Starter||Forum||Replies||Last Post|
|How to write k and epsilon before the abnormal end||xiuying||OpenFOAM Running, Solving & CFD||8||August 27, 2013 15:33|
|Floating point exception error||Alan||OpenFOAM Running, Solving & CFD||10||April 6, 2012 14:02|
|Low Mach number Compressible jet flow using LES||ankgupta8um||OpenFOAM Running, Solving & CFD||7||January 15, 2011 14:38|
|Computational time||sunnysun||OpenFOAM Running, Solving & CFD||5||March 16, 2009 04:32|
|Differences between serial and parallel runs||carsten||OpenFOAM Bugs||11||September 12, 2008 11:16|