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-   -   Fluent strange behaviour (occasional divergence) (http://www.cfd-online.com/Forums/fluent/73837-fluent-strange-behaviour-occasional-divergence.html)

muketa March 18, 2010 05:55

Fluent strange behaviour (occasional divergence)
 
Did you ever see Fluent suddenly diverging at n-th iteration (or in less than 5 or 6 iterations) saying "divergence detected in AMG solver" and than restarting the case with the same settings and initial condition, calculation go over n-th iteration without diverging?

I experienced this behaviour repetadly running a particular case (that incidentally with different value in pressure inlet boundary conditions dosen't show this behaviour).

What do you suggest?:confused:

Thanks for your attention,

Ciao from Italy,

muketa


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