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Divergence in AMG solver

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Old   September 27, 2016, 23:38
Default Divergence in AMG solver
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Joel
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Hi,

I am currently doing an LES simulation of a flow from a supersonic nozzle.

I am using the Implicit formulation. My boundary conditions are pressure-inlet and farfield-pressure for the inlet and outlet. The time step I set is at 1.0e-8.

After about 210000 iterations, i received an error:

Internal error at line 1610 in file 'dbns/rp_mstage.c' on Node 18.
Divergence detected in AMG solver
Internal error at line 1610 in file 'dbns/rp_mstage.c' on Node 103.
Divergence detected in AMG solver
Internal error at line 1610 in file 'dbns/rp_mstage.c' on Node 19.
Divergence detected in AMG solver
Internal error at line 1610 in file 'dbns/rp_mstage.c' on Node 118.
Divergence detected in AMG solver
Internal error at line 1610 in file 'dbns/rp_mstage.c' on Node 20.
....

Can anyone assist me in this issue? It will be greatly appreciated!!

Thank you
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