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-   -   Check Mesh error ... Please help me (http://www.cfd-online.com/Forums/openfoam-meshing-other/84816-check-mesh-error-please-help-me.html)

boyington February 9, 2011 09:07

Check Mesh error ... Please help me
 
Hi.
I've a big issue that I can't understand.
After the fluent3DMeshToFoam command, i would like to know if my mesh was good enough so .... checkMesh.... and that's what i received from the command windows :

/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.7.x |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 1.7.x-4bbf33160caf
Exec : checkMesh
Date : Feb 09 2011
Time : 14:02:20
PID : 4947
Case : /home/Ares
nProcs : 1
SigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).

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

Create polyMesh for time = 0

--> FOAM Warning :
From function polyMesh(const IOobject&)
in file meshes/polyMesh/polyMesh.C at line 307
no cells in mesh
Time = 0

Mesh stats
points: 107901
internal points: 0
#0 Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam171/lib/linuxGccDPOpt/libOpenFOAM.so"
#1 Foam::sigSegv::sigSegvHandler(int) in "/opt/openfoam171/lib/linuxGccDPOpt/libOpenFOAM.so"
#2 Uninterpreted:
#3 Foam::primitiveMesh::calcCells(Foam::List<Foam::ce ll>&, Foam::UList<int> const&, Foam::UList<int> const&, int) in "/opt/openfoam171/lib/linuxGccDPOpt/libOpenFOAM.so"
#4 Foam::primitiveMesh::calcCells() const in "/opt/openfoam171/lib/linuxGccDPOpt/libOpenFOAM.so"
#5 Foam::primitiveMesh::cells() const in "/opt/openfoam171/lib/linuxGccDPOpt/libOpenFOAM.so"
#6
in "/opt/openfoam171/applications/bin/linuxGccDPOpt/checkMesh"
#7
in "/opt/openfoam171/applications/bin/linuxGccDPOpt/checkMesh"
#8 __libc_start_main in "/lib/libc.so.6"
#9
in "/opt/openfoam171/applications/bin/linuxGccDPOpt/checkMesh"
Erreur de segmentation


If someone could help me to understand this error.
thanks a lot

niklas February 9, 2011 09:22

If I was you, I would focus on this line...

no cells in mesh

boyington February 9, 2011 11:33

It's strange .... because when I put fluent3DtoFoam, it tells me that I've over 13000 cells in my mesh ... so ...maybe i've to change another file before running check mesh ? what do you think ?

-mAx- February 11, 2011 02:31

did you try fluentMeshToFoam instead of fluent3DMeshToFoam?
I use fluent3DMeshToFoam if I have hanging nodes in my mesh (tetra-hexcore mesh). Else I use fluentMeshToFoam


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