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What is the reason for "Divergence detected in AMG solver: x-momentum"? |
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November 6, 2018, 03:29 |
What is the reason for "Divergence detected in AMG solver: x-momentum"?
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#1 |
Member
niewiemnic
Join Date: Jan 2018
Location: Niemcy
Posts: 80
Rep Power: 8 |
Hallo,
now I have a problem by calculation with FLUENT and if I click Check Case in Run Calculation then there are no recommendations for grid or solution methods but my calculation is always stopped with that problem. I also read that the false initial and boundary conditions can be the reasons, but I think I put all parameters not false... how can I solve this problem? Mesh Quality: Minimum Orthogonal Quality = 2.27365e-01 (Orthogonal Quality ranges from 0 to 1, where values close to 0 correspond to low quality.) Maximum Ortho Skew = 7.72635e-01 (Ortho Skew ranges from 0 to 1, where values close to 1 correspond to low quality.) Maximum Aspect Ratio = 4.08410e+01 Domain Extents: x-coordinate: min (m) = 1.697250e-01, max (m) = 1.841900e-01 y-coordinate: min (m) = -2.214984e-02, max (m) = 6.358608e-03 z-coordinate: min (m) = -4.753103e-03, max (m) = 4.753103e-03 Volume statistics: minimum volume (m3): 5.020087e-16 maximum volume (m3): 1.816189e-11 total volume (m3): 1.149541e-06 Face area statistics: minimum face area (m2): 2.954245e-11 maximum face area (m2): 1.284175e-07 Checking mesh......................... Done. I think there is no significant problem in this message and what would be the reason for the divergence? Last edited by spalartallmaras; November 7, 2018 at 03:28. |
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November 6, 2018, 09:36 |
Divergence Problem
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#2 |
Member
niewiemnic
Join Date: Jan 2018
Location: Niemcy
Posts: 80
Rep Power: 8 |
The problem was solved. The reason was from the wrong properties of the fluid. If someone struggles with similar problems, I want to suggest also to use universal fluids like water or air at first!
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