My steady state solution converges for a while but stops converging -- CFD Online Discussion Forums

October 9, 2013, 11:11

My steady state solution converges for a while but stops converging

C.C

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Join Date: Jun 2011

Posts: 73

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Hi all,

I'm trying to implement by UDF a low Reynolds k-e turbulence model using an UDF. My UDF was interpreted without any error, the solution was converging when after some iterations suddenly I obtained this error:
"Error: Divergence detected in AMG solver: uds-0
Error Object: #f"
Please, in attachment you can find the residuals plot... They are converging without a oscilatory behavior. I don't know why this is happening

Anyone can help me?
Just one more thing, anyone knows if it is possible have access to information about how low Reynolds k-e turbulence models are implemented in Fluent? Thank you.
Regards

Attached Images

Residuals.jpg (36.3 KB, 4 views)

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