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May 5, 2010, 09:25 |
particular omega residual behavior
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New Member
Join Date: Feb 2010
Posts: 8
Rep Power: 16 |
Hi,
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. |
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