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August 11, 2010, 22:57 |
Divergence detected AMG solver error
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#1 |
New Member
Rub Nawaz Khalid
Join Date: Aug 2010
Posts: 1
Rep Power: 0 |
hi all friends me a student n m using Spar-Almars model for computing flow on an airfoil NACA 2415 at mach 0.6 angle of attack 4degree during ittration the solver show error tha divergence detected AMG solver error in line 814. please help me to get out of this problem.thnx
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August 12, 2010, 05:29 |
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#2 |
Member
B. Selenbas
Join Date: Dec 2009
Posts: 37
Rep Power: 16 |
Hi Nawaz,
You can reduce under-relaxation factors a little for the turbulence parameters. After convergence begins, you can increase them again according to circumstances. |
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August 14, 2010, 11:01 |
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#3 |
New Member
sunqiang
Join Date: Nov 2009
Posts: 23
Rep Power: 16 |
Usually it wont help change the under-relaxation factors. Better check the BCS carefully.
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