SST k-w model--the parameter 'omega' does not convergence
Hi everyone,
I use SST k-w model simulate air flow in a duct. However, the parameter 'omega' does not convergence (about 5e-2). This is happen in all my case--different mesh (good and bad) and different y+(1-20). Does anyone have any ideal to help me fix the problem? Thanks. |
Quote:
Check some actual engineering values to see your simulation is converged. Scaled residuals are a poor method for judging convergence in the first place. How many iterations have you tried? |
Quote:
The good mesh is in smooth duct geometry with Quad map type mesh (The mesh uniform everywhere). The bad mesh is in some roughness surface duct (The skew>98). Can you tell me how can I check the actual engineering values to see the simulation is converged? I have tried 2000 iterations but the parameter 'omege' is not changed after just 25 iterations (keep at 5e-2) and other parameters are not changed after 500 iterations. Any more idea to solve this problem? Thanks. |
Quote:
Check solution values by creating point, line, or surface monitors of some relevant engineering quantities (pressure, velocity, temperature, turbulent kinetic energy, etc). |
Quote:
Thank you for your help. |
All times are GMT -4. The time now is 07:05. |