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April 9, 2019, 12:01 |
multiRegionHeater error
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#1 |
Member
Emre
Join Date: Nov 2015
Location: Izmir, Turkey
Posts: 97
Rep Power: 10 |
Hello,
I have a case which is similar to the multiRegionHeater case: There are two incompressible cross flows and two solid wall regions. chtMultiRegionFoam command gives me an incomprehensible error: Code:
emre@toshiba:~/heatexchanger$ chtMultiRegionFoam /*---------------------------------------------------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 6 \\/ M anipulation | \*---------------------------------------------------------------------------*/ Build : 6-e29811f5dff8 Exec : chtMultiRegionFoam Date : Apr 09 2019 Time : 18:44:43 Host : "toshiba" PID : 12073 I/O : uncollated Case : /home/emre/heatexchanger 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 Create fluid mesh for region coldfluid for time = 0 Create fluid mesh for region hotfront for time = 0 Create fluid mesh for region hotrear for time = 0 Create solid mesh for region wallfront for time = 0 Create solid mesh for region wallrear for time = 0 *** Reading fluid mesh thermophysical properties for region coldfluid Adding to thermoFluid Selecting thermodynamics package { type heRhoThermo; mixture pureMixture; transport const; thermo hConst; equationOfState perfectGas; specie specie; energy sensibleEnthalpy; } Adding to rhoFluid Adding to UFluid Adding to phiFluid Adding to gFluid Adding to hRefFluid Adding to ghFluid Adding to ghfFluid Adding to turbulenceFluid Selecting turbulence model type laminar Selecting laminar stress model Stokes Adding to reactionFluid Combustion model not active: combustionProperties not found Selecting combustion model none Adding to radiationFluid Selecting radiationModel none Adding to KFluid Adding to dpdtFluid Adding to fieldsFluid Adding to QdotFluid Adding MRF No MRF models present Adding fvOptions *** Reading fluid mesh thermophysical properties for region hotfront Adding to thermoFluid Selecting thermodynamics package { type heRhoThermo; mixture pureMixture; transport const; thermo hConst; equationOfState perfectGas; specie specie; energy sensibleEnthalpy; } Adding to rhoFluid Adding to UFluid Adding to phiFluid Adding to gFluid Adding to hRefFluid Adding to ghFluid Adding to ghfFluid Adding to turbulenceFluid Selecting turbulence model type laminar Selecting laminar stress model Stokes Adding to reactionFluid Combustion model not active: combustionProperties not found Selecting combustion model none Adding to radiationFluid Radiation model not active: radiationProperties not found Selecting radiationModel none Adding to KFluid Adding to dpdtFluid Adding to fieldsFluid Adding to QdotFluid Adding MRF No MRF models present Adding fvOptions *** Reading fluid mesh thermophysical properties for region hotrear Adding to thermoFluid Selecting thermodynamics package { type heRhoThermo; mixture pureMixture; transport const; thermo hConst; equationOfState perfectGas; specie specie; energy sensibleEnthalpy; } Adding to rhoFluid Adding to UFluid Adding to phiFluid Adding to gFluid Adding to hRefFluid Adding to ghFluid Adding to ghfFluid Adding to turbulenceFluid Selecting turbulence model type laminar Selecting laminar stress model Stokes Adding to reactionFluid Combustion model not active: combustionProperties not found Selecting combustion model none Adding to radiationFluid Radiation model not active: radiationProperties not found Selecting radiationModel none Adding to KFluid Adding to dpdtFluid Adding to fieldsFluid Adding to QdotFluid Adding MRF No MRF models present Adding fvOptions *** Reading solid mesh thermophysical properties for region wallfront Adding to thermos Selecting thermodynamics package { type heSolidThermo; mixture pureMixture; transport constIso; thermo hConst; equationOfState rhoConst; specie specie; energy sensibleEnthalpy; } Adding to radiations Selecting radiationModel opaqueSolid Selecting absorptionEmissionModel constantAbsorptionEmission Selecting scatterModel none Selecting sootModel none Adding fvOptions *** Reading solid mesh thermophysical properties for region wallrear Adding to thermos Selecting thermodynamics package { type heSolidThermo; mixture pureMixture; transport constIso; thermo hConst; equationOfState rhoConst; specie specie; energy sensibleEnthalpy; } Adding to radiations Selecting radiationModel opaqueSolid Selecting absorptionEmissionModel constantAbsorptionEmission Selecting scatterModel none Selecting sootModel none Adding fvOptions PIMPLE: Region coldfluid PIMPLE: No convergence criteria found PIMPLE: Region hotfront PIMPLE: No convergence criteria found PIMPLE: Region hotrear PIMPLE: No convergence criteria found PIMPLE: Region wallfront PIMPLE: No convergence criteria found PIMPLE: Region wallrear PIMPLE: No convergence criteria found PIMPLE: Operating solver in PISO mode #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::divide(Foam::Field<double>&, Foam::UList<double> const&, Foam::UList<double> const&) at ??:? #4 Foam::operator/(Foam::UList<double> const&, Foam::UList<double> const&) at ??:? #5 ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/chtMultiRegionFoam" #6 ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/chtMultiRegionFoam" #7 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #8 ? in "/opt/openfoam6/platforms/linux64GccDPInt32Opt/bin/chtMultiRegionFoam" Floating point exception (core dumped) Regards, Emre |
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May 28, 2020, 06:27 |
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#2 |
New Member
Join Date: Mar 2020
Posts: 4
Rep Power: 6 |
Hi Ordinary, were you able to identify the issue with your simulation? I am working with chtMultiRegionFoam. I am just trying to simulate the compressible flow of air within two hotplates. It is a 2D Simulation.
I tried to run a dummy case, in order to understand if the solver is running. PIMPLE { } I am getting the same result as you. PIMPLE algorithm finds no convergences defined for all regions and It shifts to PISO. And finally a Floating Point error. I rechecked my boundary conditions. Can anyone help me understand what can be the issue? I am very new to OpenFoam. Please Find my logFile: PHP Code:
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June 9, 2020, 17:43 |
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#3 |
Member
Emre
Join Date: Nov 2015
Location: Izmir, Turkey
Posts: 97
Rep Power: 10 |
Hello,
Unfortunately this topic moved to my unfinished works long time ago. I will definitely continue in the future. |
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