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January 26, 2017, 01:29 |
Divergence detected in AMG solver
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#1 |
New Member
Sk Tanbir Islam
Join Date: Aug 2015
Posts: 1
Rep Power: 0 |
Hi
I am facing divergence problem during a mould filling simulation using multi-phase Eularian model. When I am trying to access the pressure [C_P(c,t)] of the secondary phase, it shows the divergence. I have used a udf (DEFINE_PROPERTY) for viscosity change with pressure value of the secondary phase. The same udf is working with a simpler geometry but not with my actual geometry. The mesh quality of the geometry is Minimum Orthogonal Quality = 7.56955e-01 Maximum Aspect Ratio = 1.69498e+01 (about 10% of the total elements) If I take the pressure value as a constant then it works fine with the current geometry. Please give me your suggestions. Thanks a lot. |
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Tags |
divergence amg solver, floating point, mesh quality, multiphase flow |
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