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Error: Divergence detected in AMG solver: x-momentum

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Old   October 1, 2013, 10:46
Default Error: Divergence detected in AMG solver: x-momentum
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I am doing a 2D wind simulation in an urban area for a small wind turbine. When I start the calculation it gives me this error!

Divergence detected in AMG solver: x-momentum -> Increasing relaxation sweeps!

Error: Divergence detected in AMG solver: x-momentum
Error Object: #f

Please help me!!!

Thanks,

Luca.
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Old   October 1, 2013, 14:31
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Hey!
With a hundred percent you forgot something, maybe appropriate values for initialization or wrong B.C. Check it.
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Old   October 2, 2013, 11:30
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Quote:
Originally Posted by A CFD free user View Post
Hey!
With a hundred percent you forgot something, maybe appropriate values for initialization or wrong B.C. Check it.
yup, this is possible. i got this error when using 300k instead of 350k for initialization.
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Old   October 4, 2013, 13:02
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And now, this error?!

Cell Centroid is xc 119.995003 yc 0.368473
WARNING: no face with given nodes. Thread 10, cell 94826
Clearing partially read grid.

Error: Build Grid: Aborted due to critical error.
Error Object: #f
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amg solver, fluent, momentum, relaxation

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