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laplacianFoam, floating point exception

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Old   December 19, 2014, 17:32
Default laplacianFoam, floating point exception
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Max Kern
Join Date: Dec 2014
Posts: 1
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blueteeth is on a distinguished road
Hi,

I'm a new OpenFoam user and stuck with a problem you might consider rather trivial.

I tried to run a simulation very similar to the laplacianFoam (flange) tutorial.
controlDict, fvSchemes, transportProperties and fvSolution are the same as in the tutorial.

The Mesh was generated with blockMesh

Code:
FoamFile
{
    version     2.0;
    format      ascii;
    class       dictionary;
    object      blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

convertToMeters 0.001;
vertices
(
 (-5 -5 0) //0
 (5 -5 0) //1
 (5 5 0) //2
 (-5 5 0) //3
 (-5 -5 50) //4
 (5 -5 50) //5
 (5 5 50) //6
 (-5 5 50) //7

);

blocks
(
 hex (0 1 5 4 3 2 6 7) (10 100 10) simpleGrading (1 1 1) //0
);

edges
(
);

patches
(
 patch front 
 (
 (0 1 2 3)
 )

 patch back
 (
 (4 5 6 7)
 )

 patch tube
 (
 (0 3 7 4)
 (3 2 6 7)
 (1 5 6 2)
 (0 1 5 4)
 )

);
Boundary Conditions:

Code:
FoamFile
{
    version     2.0;
    format      ascii;
    class       volScalarField;
    object      T;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions      [ 0 0 0 1 0 0 0 ];

internalField   uniform 273;

boundaryField
{

    front
    {
        type            fixedValue;
        value           uniform 273;
    }

    tube
    {
        type            zeroGradient;
    }

    back
    {
        type            fixedValue;
        value           uniform 573;
    }
}

// ************************************************************************* //
blockMesh runs fine but when I try to run laplacianFoam I end up with the following:

Code:
DICPCG:  Solving for T, Initial residual = 0.480419, Final residual = 8.34292e-07, No Iterations 60
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2   in "/lib/x86_64-linux-gnu/libc.so.6"
#3  double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) at ??:?
#4  Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#5  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
#6  Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
#7  
 at ??:?
#8  
 at ??:?
#9  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#10  
 at ??:?
Floating point exception (core dumped)
Where's my mistake?

Thanks,
Max
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