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September 1, 2013, 20:04 |
Floating point exception (core dumped)
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#1 |
New Member
Joey
Join Date: Nov 2009
Location: Moscow, ID
Posts: 6
Rep Power: 16 |
im very new to Openfoam and am trying to learn it. I want to run a flat plate case to compare to blasius soln. I setup the mesh and initial conditions and geometry (according to my understanding :P)
im trying to run the flat plate case using icoFoam for 1000 iterations with a deltaT of 0.01, so total 10 secs. so my simulation runs until 1.66 secs i.e. 166 iterations. then at 1.67 i get the following error and dump msg.. ive included the msg frm 1.66 secs for ref if needed.. Time = 1.66 Courant Number mean: 1.03658e+89 max: 1.19227e+91 DILUPBiCG: Solving for Ux, Initial residual = 0.99532, Final residual = 15.6817, No Iterations 1001 DILUPBiCG: Solving for Uy, Initial residual = 0.998739, Final residual = 3.49624, No Iterations 1001 DICPCG: Solving for p, Initial residual = 1, Final residual = 7.47581, No Iterations 1001 time step continuity errors : sum local = 2.97164e+93, global = -1.6172e+91, cumulative = -1.61721e+91 DICPCG: Solving for p, Initial residual = 0.984306, Final residual = 3.82589, No Iterations 1001 time step continuity errors : sum local = 7.6204e+95, global = 2.29239e+93, cumulative = 2.27621e+93 ExecutionTime = 9.87 s ClockTime = 16 s Time = 1.67 Courant Number mean: 1.5404e+96 max: 1.81873e+98 #0 Foam::error:rintStack(Foam::Ostream&) in "/opt/openfoam221/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #1 Foam::sigFpe::sigHandler(int) in "/opt/openfoam221/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #2 in "/lib/x86_64-linux-gnu/libc.so.6" #3 double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) in "/opt/openfoam221/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #4 Foam::PBiCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/opt/openfoam221/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" #5 in "/opt/openfoam221/platforms/linux64GccDPOpt/bin/icoFoam" #6 in "/opt/openfoam221/platforms/linux64GccDPOpt/bin/icoFoam" #7 in "/opt/openfoam221/platforms/linux64GccDPOpt/bin/icoFoam" #8 in "/opt/openfoam221/platforms/linux64GccDPOpt/bin/icoFoam" #9 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #10 in "/opt/openfoam221/platforms/linux64GccDPOpt/bin/icoFoam" Floating point exception (core dumped) I apologize if its something stupid. like i mentioned in my post, im very new and trying to learn on my own... im not completely confident about my case setup also. Thanks a lot and i appreciate your time... |
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September 3, 2013, 08:51 |
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#2 |
Senior Member
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Hi,
Try uploading your case to take a look at.
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Learn OpenFOAM in Persian SFO (StarCCM+ FLUENT OpenFOAM) Project Team Member Complex Heat & Flow Simulation Research Group If you can't explain it simply, you don't understand it well enough. "Richard Feynman" |
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Tags |
blasius, core dumped, flat plate, floating point exception |
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