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November 26, 2009, 08:36
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convergence problem
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#1 |
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New Member
Li Liu
Join Date: Nov 2009
Posts: 16
Rep Power: 0  |
Hi, everyone, i am dealing with the mixing problem in a stirred tank. I used MRF method to simulate the mixing situation, the biggest problem now is the both the mass and momentum can not get the convergence criterior (momontum around 10-3,and mass around 10-4). when it gets to the certain computation steps, the values will not change any more...
how to solve this problem... Thanks in advance for every help. Best regards, Lily |
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December 1, 2009, 04:54
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#2 |
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Senior Member
karine
Join Date: Nov 2009
Posts: 158
Rep Power: 17 |
Residuals are not a good criterion....Try monitoring variables instead: maybe u have alerady convergence.
Anyway,u can refine ure time step or change ure turbulence model....Refining ure mesh is also appreciated Regards |
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