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floating point exception (dore dumped) error - pisoFoam |
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August 10, 2018, 19:18 |
floating point exception (dore dumped) error - pisoFoam
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#1 | |
New Member
Gazi Yavuz
Join Date: Apr 2018
Posts: 17
Rep Power: 8 |
Hello dear all,
I try to simulate tip leakage flow over a low pressure turbine blade for my thesis so that i set up my case in OpenFoam in order to proceed it. I completed my pre-processing steps (creating domain, mesh, initial files on OpenFoam etc.) and i used Pointwise to create my hybrid mesh. However, when i begin to run simulation i get the error, that is "floating point exception (core dumped)" all the time. I changed my mesh, reset the boundary conditions but still the same error for WEEKS. Could you please help me? I ve read many posts about the problem and they say there might be something which is divided by zero but i don't know what that is. Quote:
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August 13, 2018, 16:33 |
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#2 | |||
New Member
Gazi Yavuz
Join Date: Apr 2018
Posts: 17
Rep Power: 8 |
Ok. I have another problem now. I ve noticed that i must specify "patch" for the periodic boundaries instead of "cyclic" on Pointwise. Then, i must create a "createPatchDict" file in the "system" folder and run "createPatch" on terminal to define those periodic boundries properly. However, i get another error while doing that.
Here is my createPatchDict Quote:
Quote:
Quote:
I barely comprehended how createPatch command works but still don't know why i get that error. Actually i ve changed my mesh many times so that i'm really bored of doing same things again again. At the end, i got just stupid different error which i don't know what they are about. OpenFOAM's error handling is terrible, just few lines but no clear explanations |
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August 19, 2018, 21:30 |
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#3 |
New Member
Gazi Yavuz
Join Date: Apr 2018
Posts: 17
Rep Power: 8 |
I solved the problem but do not know how to vanish that post. Or, i could help if someone has the same problem
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May 19, 2024, 08:17 |
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#4 | |
New Member
Thokala Divya
Join Date: Dec 2021
Posts: 10
Rep Power: 4 |
Quote:
Hi, Can you please help me? How could you resolve the problem? I am getting almost a similar error as follows. Courant Number mean: 0.000152296 max: 0.0566087 smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 4.18724e-06, No Iterations 3 smoothSolver: Solving for Uy, Initial residual = 1, Final residual = 5.88284e-06, No Iterations 3 smoothSolver: Solving for Uz, Initial residual = 1, Final residual = 3.85448e-06, No Iterations 3 Pressure gradient source: uncorrected Ubar = 4.39516e-05, pressure gradient = 24.0577 GAMG: Solving for p, Initial residual = 1, Final residual = 2.11191e+50, No Iterations 1000 time step continuity errors : sum local = 3.67866e+46, global = 4.86877e+39, cumulative = 4.86877e+39 Pressure gradient source: uncorrected Ubar = -1.03328e+44, pressure gradient = 1.24319e+46 GAMG: Solving for p, Initial residual = 0.233875, Final residual = 3.60805e+45, No Iterations 1000 time step continuity errors : sum local = 6.99856e+92, global = 5.74806e+87, cumulative = 5.74806e+87 Pressure gradient source: uncorrected Ubar = -9.96494e+92, pressure gradient = 1.19893e+95 #0 Foam::error:rintStack(Foam::Ostream&) at ??:? #1 Foam::sigFpe::sigHandler(int) at ??:? #2 ? in "/lib/x86_64-linux-gnu/libc.so.6" #3 Foam::GaussSeidelSmoother::smooth(Foam::word const&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::Field<double> const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, unsigned char, int) at ??:? #4 Foam::GaussSeidelSmoother::smooth(Foam::Field<doub le>&, Foam::Field<double> const&, unsigned char, int) const at ??:? #5 Foam::smoothSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:? #6 Foam::fvMatrix<double>::solveSegregated(Foam::dict ionary const&) at ??:? #7 Foam::fvMatrix<double>::solve(Foam::dictionary const&) in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/pisoFoam" #8 Foam::fvMatrix<double>::solve() in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/pisoFoam" #9 Foam::SolverPerformance<double> Foam::solve<double>(Foam::tmp<Foam::fvMatrix<doubl e> > const&) at ??:? #10 Foam::RASModels::realizableKE<Foam::Incompressible TurbulenceModel<Foam::transportModel> >::correct() at ??:? #11 ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/pisoFoam" #12 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #13 ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/pisoFoam" Floating point exception (core dumped)
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Divya |
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error, hybrid mesh, pisofoam |
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