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-   -   Convergence issues (https://www.cfd-online.com/Forums/fluent/43853-convergence-issues.html)

Zachary Sorensen February 21, 2007 17:59

Convergence issues
 
When running a turbulent case in Fluent, I am getting a message stating that the turbulent viscosity ratio limited to 1.0e+5. Does anyone know how to fix this?

Michele February 23, 2007 00:55

Re: Convergence issues
 
Are you usung standard-k-e? Try realizable k-e. Perhaps it gets better.


wabik February 23, 2007 04:16

Re: Convergence issues
 
be patient ... it needs some time to converge ... some more iterations ... try to adjust under-relaxation parameters

wabik

Allan Walsh February 23, 2007 13:07

Re: Convergence issues
 
What do you want to fix? Make the message go away - then change the tolerance in the set-up. If the value is unrealistically high, then you would take a different approach.


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