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[snappyHexMesh] OpenFOAM parallel run for Channel Flow

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Old   June 10, 2013, 16:08
Default OpenFOAM parallel run for Channel Flow
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Danny Moore
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Hello!

I am working to use snappyHexMesh to mesh and simulate a 3-D .stl file of a channel flow contraction in openFOAM v2.2.0 to be run on a 24 core machine using a parallel approach and the simpleFOAM solver. So far I have successfully set up a blockMesh backround mesh, extracted surface features using surfaceFeatureExtract, decomposePar to decompose the case into the proper set of domains. But when I execute:

mpirun -np 24 simpleFoam -parallel > log &

I receive errors saying:

[1] --> FOAM FATAL IO ERROR:
[1] Cannot find patchField entry for contraction_contraction
[1]
[1] file: /home/teamsoh/OpenFOAM/teamsoh-2.2.0/run/sohWind/bigBlock/processor1/0/p.boundaryField from line 26 to line 45.
[1]
[1] From function GeometricField<Type, PatchField, GeoMesh>::GeometricBoundaryField::readField(const DimensionedField<Type, GeoMesh>&, const dictionary&)
[1] in file /home/opencfd/OpenFOAM/OpenFOAM-2.2.0/src/OpenFOAM/lnInclude/GeometricBoundaryField.C at line 154.
[1]
FOAM parallel run exiting


I have found the offending code line "contraction_contraction". It exists only in the processor files after decomposePar is executed, casefile/processor#/constant/polymesh/boundary (ie it does not exist in the original casefile/constant/polymesh/boundary file). But I have yet to see a problem with the format/syntax/code structure etc...

Is there anyone who might suggest a strategy for resolving this error? Or perhaps a better method for simulating a channel flow (with a contraction and expansion)? Any input is much appreciated! Thank you
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boundary field, channel flow, openfoam 2.1.x, patchfield, snappy hex mesh

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