| lucamazzotta |
November 25, 2022 11:48 |
Meshing error
Hi, I'm getting this error while trying to create a simple quadrilateral mesh:
Code:
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 7
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
Build : 7
Exec : blockMesh
Date : Nov 25 2022
Time : 16:23:57
Host : "hurricane"
PID : 565873
I/O : uncollated
Case : /home/lm519/Desktop/OpenFOAM/backwardsStepTest
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time
Creating block mesh from
"/home/lm519/Desktop/OpenFOAM/backwardsStepTest/system/blockMeshDict"
Creating block edges
No non-planar block faces defined
Creating topology blocks
--> FOAM Warning :
From function Foam::vector Foam::cellModel::centre(const labelList&, const pointField&) const
in file meshes/meshShapes/cellModel/cellModel.C at line 70
zero or negative pyramid volume: -1.25 for face 3
--> FOAM Warning :
From function Foam::vector Foam::cellModel::centre(const labelList&, const pointField&) const
in file meshes/meshShapes/cellModel/cellModel.C at line 70
zero or negative pyramid volume: -3.75 for face 4
#0 Foam::error::printStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::blockDescriptor::check(Foam::Istream const&) at ??:?
#4 Foam::blockDescriptor::blockDescriptor(Foam::dictionary const&, int, Foam::Field<Foam::Vector<double> > const&, Foam::PtrList<Foam::blockEdge> const&, Foam::PtrList<Foam::blockFace> const&, Foam::Istream&) at ??:?
#5 Foam::block::block(Foam::dictionary const&, int, Foam::Field<Foam::Vector<double> > const&, Foam::PtrList<Foam::blockEdge> const&, Foam::PtrList<Foam::blockFace> const&, Foam::Istream&) at ??:?
#6 Foam::block::New(Foam::dictionary const&, int, Foam::Field<Foam::Vector<double> > const&, Foam::PtrList<Foam::blockEdge> const&, Foam::PtrList<Foam::blockFace> const&, Foam::Istream&) at ??:?
#7 void Foam::PtrList<Foam::block>::read<Foam::block::iNew>(Foam::Istream&, Foam::block::iNew const&) at ??:?
#8 Foam::blockMesh::createTopology(Foam::IOdictionary const&, Foam::word const&) at ??:?
#9 Foam::blockMesh::blockMesh(Foam::IOdictionary const&, Foam::word const&) at ??:?
#10 ? in "/apps/OpenFOAM/7.0/OpenFOAM-7/platforms/linux64GccDPInt32Opt/bin/blockMesh"
#11 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#12 ? in "/apps/OpenFOAM/7.0/OpenFOAM-7/platforms/linux64GccDPInt32Opt/bin/blockMesh"
Floating point exception
Could somebody help me figure out why? Many thanks in advance.
blockMeshDict:
Code:
/*--------------------------------*- C++ -*----------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Version: 7
\\/ M anipulation |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
convertToMeters 0.01;
vertices
(
(-10 0 -0.5)
(-10 3 -0.5)
(0 3 -0.5)
(10 3 -0.5)
(10 -3 -0.5)
(0 -3 -0.5)
(0 0 -0.5)
(-10 0 0.5)
(-10 3 0.5)
(0 3 -0.5)
(10 3 0.5)
(10 -3 0.5)
(0 -3 0.5)
(0 0 0.5)
);
blocks
(
hex (0 1 2 6 13 9 8 7) (20 6 1) simpleGrading (1 1 1)
hex (1 2 5 4 7 8 11 10) (20 12 1) simpleGrading (1 1 1)
);
edges
(
);
boundary
(
flow
{
type patch;
faces
(
(0 1 8 9)
(3 4 12 11)
(4 5 13 12)
);
}
obstacle
{
type wall;
faces
(
(0 7 15 8)
(6 7 15 14)
(5 6 14 13)
(2 3 11 10)
(1 2 10 9)
);
}
frontAndBack
{
type empty;
faces
(
(0 1 2 7)
(2 3 4 7)
(4 5 6 7)
(8 9 10 15)
(10 11 12 15)
(12 13 14 15)
);
}
);
mergePatchPairs
(
);
// ************************************************************************* //
|
