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January 2, 2023, 12:37 |
Divergence detected in AMG solver
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#1 |
New Member
Rahmani Zakaria
Join Date: Dec 2022
Posts: 4
Rep Power: 3 |
Hi, I am simulating a 3D transient multiphase flow using the mixture model with 3 phases and the evaporation-condensation model (Lee model). After few iterations the calculation diverges and show this message:
temperature limited to 1.000000e+00 in 80 cells on zone 4 in domain 1 temperature limited to 1.000000e+00 in 313 cells on zone 4 in domain 1 Stabilizing temperature to enhance linear solver robustness. temperature limited to 5.000000e+03 in 377818 cells on zone 4 in domain 1 Stabilizing y-momentum to enhance linear solver robustness. Stabilizing z-momentum to enhance linear solver robustness. Stabilizing temperature to enhance linear solver robustness. temperature limited to 1.000000e+00 in 756903 cells on zone 4 in domain 1 temperature limited to 1.000000e+00 on 338 faces temperature limited to 5.000000e+03 on 6 faces Stabilizing x-momentum to enhance linear solver robustness. Stabilizing y-momentum to enhance linear solver robustness. Stabilizing z-momentum to enhance linear solver robustness. Stabilizing pressure correction to enhance linear solver robustness. Stabilizing temperature to enhance linear solver robustness. temperature limited to 1.000000e+00 in 1151916 cells on zone 4 in domain 1 temperature limited to 5.000000e+03 in 18 cells on zone 4 in domain 1 temperature limited to 1.000000e+00 on 133 faces reversed flow in 346 faces on outflow 7. Stabilizing x-momentum to enhance linear solver robustness. Stabilizing y-momentum to enhance linear solver robustness. Stabilizing z-momentum to enhance linear solver robustness. Stabilizing temperature to enhance linear solver robustness. temperature limited to 5.000000e+03 in 18 cells on zone 4 in domain 1 temperature limited to 1.000000e+00 on 39 faces reversed flow in 262 faces on outflow 7. Stabilizing x-momentum to enhance linear solver robustness. Stabilizing y-momentum to enhance linear solver robustness. Stabilizing z-momentum to enhance linear solver robustness. Stabilizing temperature to enhance linear solver robustness. Stabilizing temperature using GMRES to enhance linear solver robustness. Divergence detected in AMG solver: temperature Error at host: floating point exception |
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Tags |
evaporation, lee model, mixture, multiphase flow |
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