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February 18, 2014, 13:29 |
Multiregion BlockMesh Run Problem
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New Member
Euan Foster
Join Date: Jan 2014
Posts: 12
Rep Power: 12 |
Hello!
For my dissertation this year I am working on simulating a full bifurcating network, but having never used linux or openFoam before hand this proving to be a bit tricky. I have elected to use blockMesh to make my desired mesh but before I run my full network I thought it would be best try a smaller 2 block multiregion blockMesh and that's were my troubles are. I have made the mesh and my blockMeshDict is attached (see below). It meshes fine with checkMesh saying that there are no errors(see below). I then import it into helyxOS by copying the polymesh directory over to a newCase. I set up my case by selecting steady state in compressible laminar flow of water. I specify all relevant walls with a no slip condition, leave the defaultFaces as empty, specify the inlet as a fixed velocity at 10 m/s with a zero pressure gradient and the outlet as an inlet outlet velocity at 10m/s with a fixed pressure value of 0. I leave all solver options on default because in my head it should solve but doesn't. It crashes with an error(see below)! Have I missed anything? I have also tried to delete the defaultFaces by modifying the boundary file in the polyMesh dictionary but this seems not to work either. I appreciate any help I get because right now my head is spinning!! Regards, Euan Foster. blockMeshDict Code:
/*--------------------------------*- C++ -*----------------------------------*\ | ========= | | | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | | \\ / O peration | Version: 2.2.2 | | \\ / A nd | Web: www.OpenFOAM.org | | \\/ M anipulation | | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; object blockMeshDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // convertToMeters 1; vertices ( //block1 (-0.000125 -0.0000625 0) //0 (0 -0.0000625 0) //1 (0 0.0000625 0) //2 (-0.000125 0.0000625 0) //3 (-0.000125 -0.0000625 0.01) //4 (0 -0.0000625 0.01) //5 (0 0.0000625 0.01) //6 (-0.000125 0.0000625 0.01) //7 //block2 (-0.000125 -0.0000625 0.01) //8 (0 -0.0000625 0.01) //9 (0 0.0000625 0.01) //10 (-0.000125 0.0000625 0.01) //11 (-0.000125 -0.0000625 0.0101433) //12 (0 -0.0000625 0.0101433) //13 (0 0.0000625 0.0101433) //14 (-0.000125 0.0000625 0.0101433) //15 ); blocks ( //block1 hex (0 1 2 3 4 5 6 7) (10 10 10) simpleGrading (1 1 1) //block2 hex (8 9 10 11 12 13 14 15) (10 10 10) simpleGrading (1 1 1) ); edges ( ); boundary ( symmetry { type wall; faces ( (2 6 5 1) //1st block (10 14 13 9) //2nd block ); } walls { type wall; faces ( //Lower walls (1 5 4 0) //1 block (9 13 12 8) //2 block //Upper walls (3 7 6 2) //1 block (11 15 14 10) //2 block //1 block foward (0 4 7 3) (8 12 15 11) ); } inlet { type patch; faces ( (0 3 2 1) //1 block ); } outlet { type patch; faces ( //2 block back (12 13 14 15) ); } ); mergePatchPairs ( ); // ************************************************************************* // Checking geometry... Overall domain bounding box (-0.000125 -6.25e-05 0) (0 6.25e-05 0.0101433) Mesh (non-empty, non-wedge) directions (1 1 0) Mesh (non-empty) directions (1 1 0) All edges aligned with or perpendicular to non-empty directions. Boundary openness (-3.38379e-16 5.87812e-17 -8.15637e-19) OK. Max cell openness = 1.99844e-16 OK. Max aspect ratio = 1 OK. Minimum face area = 1.5625e-10. Maximum face area = 1.25e-08. Face area magnitudes OK. Min volume = 2.23906e-15. Max volume = 1.5625e-13. Total volume = 1.58489e-10. Cell volumes OK. Mesh non-orthogonality Max: 0 average: 0 Non-orthogonality check OK. Face pyramids OK. Max skewness = 0.771828 OK. Coupled point location match (average 0) OK. Mesh OK. End Error #0 Foam::error:rintStack(Foam::Ostream&) in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #1 Foam::sigFpe::sigHandler(int) in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #2 in "/lib/x86_64-linux-gnu/libc.so.6" #3 double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #4 Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #5 Foam::GAMGSolver::solveCoarsestLevel(Foam::Field<d ouble>&, Foam::Field<double> const&) const in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #6 Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMa trix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #7 Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #8 Foam::fvMatrix<double>::solveSegregated(Foam::dict ionary const&) in "/opt/openfoam222/platforms/linux64GccDPOpt/lib/libfiniteVolume.so" #9 Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/openfoam222/platforms/linux64GccDPOpt/bin/simpleFoam" #10 at simpleFoam.C:0 #11 in "/opt/openfoam222/platforms/linux64GccDPOpt/bin/simpleFoam" #12 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #13 in "/opt/openfoam222/platforms/linux64GccDPOpt/bin/simpleFoam" |
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Tags |
blockmesh, error, helyxos, multi-region, run |
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