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What is this in snappyHexMesh ?

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Old   January 29, 2010, 08:43
Default What is this in snappyHexMesh ?
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Andrea Pasquali
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Hi,
I used snappyHexMesh successfully, but now it doesn't seem to work fine during snappy.
After castellated meshing I obtain:

Quote:
Correct-ing 2-D mesh motion--> FOAM Warning :
From function twoDPointCorrector::twoDPointCorrector(const polyMesh& mesh, const vector& n)
in file twoDPointCorrector/twoDPointCorrector.C at line 169
The number of points in the mesh is not equal to twice the number of edges normal to the plane - this may be OK only for wedge geometries.
Please check the geometry or adjust the orthogonality tolerance.
and then

Quote:
Scaling iteration 1
Moving mesh using diplacement scaling : min:0.75 max:1
Correct-ing 2-D mesh motion ...done
At the end, the result is that the snappy mesh is like the cast mesh!
Do I need to increase the toletance in snapControls?

Thanks for any help

Andrea
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Old   January 29, 2010, 09:02
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stupid error! I had an empty patch!
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Old   January 21, 2011, 09:41
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Hannes
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I got the same Error with no empty Patch, and i can find nothing about this Error on the net:

Correct-ing 2-D mesh motion--> FOAM Warning :
From function twoDPointCorrector::twoDPointCorrector(const polyMesh& mesh, const vector& n)
in file twoDPointCorrector/twoDPointCorrector.C at line 168
The number of points in the mesh is not equal to twice the number of edges normal to the plane - this may be OK only for wedge geometries.
Please check the geometry or adjust the orthogonality tolerance.

Greets, Hannes (desperately hoping for an answer, finally)
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Old   January 24, 2011, 10:12
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Jens Höpken
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Does your mesh consist of only one cell in a specific direction? This maybe (!?) a reason why snappy thinks, it is dealing with a 2D mesh.
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Old   January 26, 2011, 06:36
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Hannes
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Dear Jens,

thanks a lot for your post. That was not the reason, but I had two empty patches. Setting them to walls solved it.
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Old   November 8, 2011, 12:28
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Hello all,

I get a similar message in OF-1.5-dev. My case is 2-D axisymmetric and I created the mesh with blockMesh in OF. the solver actually starts running but after 1 iteration it diverges and reports the following error:

Quote:
From function twoDPointCorrector::twoDPointCorrector(const polyMesh& mesh, const vector& n)
in file twoDPointCorrector/twoDPointCorrector.C at line 175
The number of points in the mesh is not equal to twice the number of edges normal to the plane - this may be OK only for wedge geometries.
Please check the geometry or adjust the orthogonality tolerance.
Any idea or comment is greatly appreciated.
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