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Old   November 5, 2013, 12:37
Question Visualizing imported meshes
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Ok, so I am still a beginner at OF trying to figure how things work out. I imported 2 meshes with varying success:

1. From HyperMesh in .cas format, then imported via fluentMeshToFoam. Importing was successful, but could not visualize w/ paraFoam, used
> foamToVtk
> paraview
Opened the 0.vtk file and it worked like a charm!

2. From Star CCM+ 8.04, I imported the 2D mesh from the back step tutorial. ccm26ToFoam worked fine and updated the files in the polyMesh folder (all but blockMesh).

Now I tried to do exactly as I did before:
1. deleted the p, U 0-files.
2. foamToVtk (so that I can use paraview)

but I received the following error(s):
Build  : 2.2.2-9240f8b967db
Exec   : foamToVTK
Date   : Nov 05 2013
Time   : 09:18:47
Host   : "UbuntuAres"
PID    : 6301
Case   : /home/openfoam/OpenFOAM/openfoam-2.2.2/Third_Party_Downloads/ccm26ToFoam/cavity
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Disallowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Deleting old VTK files in "/home/openfoam/OpenFOAM/openfoam-2.2.2/Third_Party_Downloads/ccm26ToFoam/cavity/VTK"

Time: 0
    volScalarFields            : cellId cellType

    Internal  : "/home/openfoam/OpenFOAM/openfoam-2.2.2/Third_Party_Downloads/ccm26ToFoam/cavity/VTK/cavity_0.vtk"

Serious problem: asked to split a face with < 3 vertices

    From function face::split(const face::splitMode, const pointField&, label&, label&, faceList&, faceList&)
    in file meshes/meshShapes/face/face.C at line 143.

FOAM aborting

#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::error::abort() at ??:?
#2  Foam::face::split(Foam::face::splitMode, Foam::Field<Foam::Vector<double> > const&, int&, int&, Foam::List<Foam::face>&, Foam::List<Foam::face>&) const at ??:?
#3  Foam::face::nTrianglesQuads(Foam::Field<Foam::Vector<double> > const&, int&, int&) const at ??:?
 at ??:?
 at ??:?
 at ??:?
#7  __libc_start_main in "/lib/x86_64-linux-gnu/"
 at ??:?
Aborted (core dumped)
So, any idea how to fix that? Thanks.
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Old   November 9, 2013, 16:23
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Bruno Santos
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wyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nice
Greetings sudo,

Well, the problem is that the mesh is far from perfect, which leads to foamToVTK not be able to split a strange looking cell.
You can try using the option "-poly", which preserves the structures of polyhedral cells, without splitting/decomposing them; but I'm guessing you'll get another similar problem sooner or later, since the mesh is not perfect.

As for not being able to open the mesh with paraFoam, I won't be able to help without seeing the complete error message.

Best regards,
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ccm+ foamtovtk paraview

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