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Divergence detected in AMG solver: pressure correction |
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August 11, 2015, 07:00 |
Divergence detected in AMG solver: pressure correction
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#1 |
Senior Member
Aja
Join Date: Nov 2013
Posts: 496
Rep Power: 14 |
Hi,
I am simulating a turbine. When I start Simulation the message error appears "Error: Divergence detected in AMG solver: pressure correction Error: Divergence detected in AMG solver: pressure correction Error Object: #f" and I´m not able to solve it. Boundary conditions: - inlet: velocity-inlet (direction y) - outlet: pressure-outlet=0 Turbulence: K-Epsilon-realizable-non equlibrium. Intensity of turbulence: 0.032 and hydraulic diameter: 0.59 m Anyone has a hint? thanks in advance |
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August 11, 2015, 12:52 |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,654
Rep Power: 65 |
Mesh quality?
Initial conditions? Have you tried running a constant density? |
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August 11, 2015, 16:31 |
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#3 | |
Senior Member
Aja
Join Date: Nov 2013
Posts: 496
Rep Power: 14 |
Quote:
The grid consists of structured hexahedral elements. Firstly I normally meshed until I understand that my method is right or not. How to understand mesh quality? I selected inlet velocity for Initial conditions. Yes, It was assumed that the fluid was incompressible(constant density) and the flow was steady and The working fluid was air. For more information, Please see the following links. I think that the following links are related to this my problem. http://www.cfd-online.com/Forums/flu...interface.html http://www.cfd-online.com/Forums/flu...interface.html I am grateful that guide me about this problem. Best, Aja |
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