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Error: Divergence detected in AMG solver: uds-0 |
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September 25, 2013, 12:44 |
Error: Divergence detected in AMG solver: uds-0
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#1 |
Member
CC
Join Date: Jun 2011
Posts: 73
Rep Power: 14 |
Hi all,
I'm trying to modify the k and e equations in the k-e turbulence model using user defined scalars. I obtained this error "Error: Divergence detected in AMG solver: uds-0 Error Object: #f" when I modify the viscosity to a non-newtonian viscosity. The viscosity expression is: viscosity=10*ShearRate^(-0.7). The residuals for the continuity increases until the simulation stops. If I teste an expression for viscosity like that viscosity=0.2*ShearRate^(-0.4) the solution converges. Please someone can help me? It is very important for me solve this question and I don't have any ideia why it is happening |
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June 29, 2015, 06:32 |
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#2 |
New Member
Join Date: Feb 2015
Posts: 13
Rep Power: 11 |
Hello,
Did you got the solution to your problem |
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June 29, 2015, 08:09 |
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#3 |
New Member
antonio
Join Date: Jun 2015
Posts: 16
Rep Power: 10 |
hi dear friend
i see this error when mesh isnt good. do u check your mesh? is your mesh is suitable? |
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