[lucabiagioni]

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.

[A CFD free user]

Hey!
With a hundred percent you forgot something, maybe appropriate values for initialization or wrong B.C. Check it.

[chngyian]

Originally Posted by A CFD free user

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.

[lucabiagioni]

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