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Forum: FLUENT

March 4, 2012, 12:40

Replies: 3

Divergence detected in AMG solver

Views: 3,354

Posted By cfd seeker

Implicit scheme is very very unstable and has...

Implicit scheme is very very unstable and has very strict conditions on the time step size. Courant no can be changed in the implicit scheme also. Its default value is 1 and you can reduce it.

Forum: FLUENT

March 4, 2012, 05:47

Replies: 3

Divergence detected in AMG solver

Views: 3,354

Posted By cfd seeker

Mate reduce the courant no and also the under...

Mate reduce the courant no and also the under relaxation factors at the start of simulation, once your solution gets stabilized then increase the courant no. The low the courant no. the more your...

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