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Floating point exception (core dumped)

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Old   July 13, 2018, 08:14
Default Floating point exception (core dumped)
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Vivek
Join Date: Mar 2018
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Hi,
I am using interFoam solver for the simulation of 2D Spray mechanism.I am facing two different kind of errors.
1.
Courant Number mean: 2.4426e-10 max: 0.696321
Interface Courant Number mean: 2.18474e-14 max: 0.000194981
deltaT = 7.78442e-111
Time = 1.69242e-05

PIMPLE: iteration 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 2.57694e-11 Min(alpha.water) = -0.554977 Max(alpha.water) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 2.57694e-11 Min(alpha.water) = -0.554891 Max(alpha.water) = 1
#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib64/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::dict ionary const&) at ??:?
#6 Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
#7 ? at ??:?
#8 __libc_start_main in "/lib64/libc.so.6"
#9 ? at ??:?
Floating point exception (core dumped)


2. FOAM Warning :
From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBu ffers&)
in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
Wedge patch 'frontAndBackPlanes_neg' is not planar.
At local face at (-0.0999909 0.02875 -0.00125406) the normal (0 -0.0435786 -0.99905) differs from the average normal (-1.87367e-08 -0.0435779 -0.99905) by 4.02353e-13
Either correct the patch or split it into planar parts


These are two errors i am facing .i tried with many different courant no ranging from 0.01 to 100. i dont know exactly where i am making mistakes. i also searched thread related to this problem. i am not able figure it out.
Any suggestions ??
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Old   July 13, 2018, 08:41
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Santiago Lopez Castano
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Quote:
Originally Posted by vivek05 View Post
Hi,
I am using interFoam solver for the simulation of 2D Spray mechanism.I am facing two different kind of errors.
1.
Courant Number mean: 2.4426e-10 max: 0.696321
Interface Courant Number mean: 2.18474e-14 max: 0.000194981
deltaT = 7.78442e-111
Time = 1.69242e-05

PIMPLE: iteration 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 2.57694e-11 Min(alpha.water) = -0.554977 Max(alpha.water) = 1
MULES: Solving for alpha.water
Phase-1 volume fraction = 2.57694e-11 Min(alpha.water) = -0.554891 Max(alpha.water) = 1
#0 Foam::error:rintStack(Foam::Ostream&) at ??:?
#1 Foam::sigFpe::sigHandler(int) at ??:?
#2 ? in "/lib64/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::dict ionary const&) at ??:?
#6 Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
#7 ? at ??:?
#8 __libc_start_main in "/lib64/libc.so.6"
#9 ? at ??:?
Floating point exception (core dumped)


2. FOAM Warning :
From function virtual void Foam::wedgePolyPatch::calcGeometry(Foam::PstreamBu ffers&)
in file meshes/polyMesh/polyPatches/constraint/wedge/wedgePolyPatch.C at line 70
Wedge patch 'frontAndBackPlanes_neg' is not planar.
At local face at (-0.0999909 0.02875 -0.00125406) the normal (0 -0.0435786 -0.99905) differs from the average normal (-1.87367e-08 -0.0435779 -0.99905) by 4.02353e-13
Either correct the patch or split it into planar parts


These are two errors i am facing .i tried with many different courant no ranging from 0.01 to 100. i dont know exactly where i am making mistakes. i also searched thread related to this problem. i am not able figure it out.
Any suggestions ??
Well, the log is telling to you clearly what the problem is: fix the non-planar faces
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