CFD Online Discussion Forums - [mesh manipulation] Cyclic BC how to obtain exact same meshes?

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Hey,

I don't suggest to import from other software. This was just for my case, where I used another software for academic purposes. In this case, my suggested "workflow" is the one that actually made the mesh OF compatible for cyclic boundaries :). If you use SHM, it should generate the mesh just fine. Sorry, I don't have any idea regarding a solution to your case :/..

Quote:

Originally Posted by Metti (Post 510108)

Hey Foamers,

I'm being stopped. after SHM & createPatch for cyclicAMI faces when running simpleFOAM, it crashes out with the following error:

and non of changing solver or other tips of the previous post on this thread couldn't change the situation.
I'm still stuck in my progress.

share your Tips if possible for help.

Thanks in Advance,

best regards,
Metti.

Hi Metti,
I have the same issue as you, but I know where the problem comes from. If you check the following lines, you see that the minimum connection between your AMI patches goes down to zero for at least one of the faces. The solver of course can't deal with that.

Code:

AMI: Creating addressing and weights between 420 source faces and 476 target faces

AMI: Patch source weights min/max/average = 0.67855, 1.0136, 0.995154

AMI: Patch target weights min/max/average = 0, 1.03575, 0.983427

AMI: Creating addressing and weights between 768 source faces and 807 target faces

AMI: Patch source weights min/max/average = 0.898335, 1.03752, 0.999786

AMI: Patch target weights min/max/average = 0.0196412, 1.03748, 0.98675

What I haven't found is how to identify the problematic faces on the AMI patches. Does someone knows a way to write the weights as a boundary field and visualize it in ParaView for example? Or any other way to identify those faces?
Thanks!
Eloïse

Dear Metti,

What happens when you set lowWeightCorrection to 0.5?

Best regards,

Kate

Quote:

Originally Posted by Metti (Post 510108)