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July 18, 2018, 04:50 |
Temperature dependent viscosity model
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#1 |
New Member
masahiro T
Join Date: Jul 2018
Posts: 1
Rep Power: 0 |
Hi all
I have a problem with a task.Please help me. I added temperature equation in interfoam. And, I modified the powerlaw to make temperature dependence on the viscosity. (Temperature dependence changes at a certain temperature) this is a part of temppowerLaw.C //------------------------------------------------------------------------------ Foam::tmp<Foam::volScalarField> Foam::viscosityModels::temppowerLaw::calcNu() const { const volScalarField& T= U_.mesh().lookupObject<volScalarField>("T"); volScalarField nunu ( IOobject ( "nunu", U_.mesh().time().timeName(), U_.mesh(), IOobject::NO_READ, IOobject::NO_WRITE ), U_.mesh(), dimensionedScalar("nunu", dimensionSet(0,2,-1,0,0,0,0),0.1), "zeroGradient" ); forAll(T,celli) { if (T[celli] > Tswch_.value()) { nu0_.value()/rho0_.value()*(Foam::exp(k_.value()/T[celli]); } else { (AA_.value()*pow(T[celli],3)+BB_.value()*pow(T[celli],2)+CC_.value()*T[celli]+DD_.value())/rho0_.value(); } } return nunu; } ------------------------------------------------------------------------------------------------------------------------- I can compile it but, I get an printstack error when I run. Selecting incompressible transport model temppowerLaw #0 Foam::error:rintStack(Foam::Ostream&) at ~/OpenFOAM/OpenFOAM-2.3.0/src/OSspecific/POSIX/printStack.C:221 #1 Foam::sigSegv::sigHandler(int) at ~/OpenFOAM/OpenFOAM-2.3.0/src/OSspecific/POSIX/signals/sigSegv.C:56 #2 in "/lib/x86_64-linux-gnu/libc.so.6" #3 Foam::List<double>::List(Foam::List<double> const&) at ~/OpenFOAM/OpenFOAM-2.3.0/src/OpenFOAM/lnInclude/List.C:107 #4 Foam::Field<double>::Field(Foam::Field<double> const&) at ~/OpenFOAM/OpenFOAM-2.3.0/src/OpenFOAM/lnInclude/Field.C:201 #5 Foam:imensionedField<double, Foam::volMesh>:imensionedField(Foam::IOobject const&, Foam:imensionedField<double, Foam::volMesh> const&) at ~/OpenFOAM/OpenFOAM-2.3.0/src/OpenFOAM/lnInclude/DimensionedField.C:192 (discriminator 2) #6 Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>::GeometricField(Foam::IOobject const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh> const&) at ~/OpenFOAM/OpenFOAM-2.3.0/src/OpenFOAM/lnInclude/GeometricField.C:486 #7 Foam::viscosityModels::temppowerLaw::temppowerLaw( Foam::word const&, Foam::dictionary const&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&) at ~/OpenFOAM/vmg-2.3.0/src/transportModels/incompressible2/viscosityModels/temppowerLaw/temppowerLaw.C:125 (discriminator 6) #8 Foam::viscosityModel::adddictionaryConstructorToTa ble<Foam::viscosityModels::temppowerLaw>::New(Foam ::word const&, Foam::dictionary const&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&) at ~/OpenFOAM/OpenFOAM-2.3.0/src/transportModels/incompressible/lnInclude/viscosityModel.H:96 (discriminator 2) #9 Foam::viscosityModel::New(Foam::word const&, Foam::dictionary const&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&) at ~/OpenFOAM/vmg-2.3.0/src/transportModels/incompressible2/viscosityModels/viscosityModel/viscosityModelNew.C:61 #10 Foam::myIncompressibleTwoPhaseMixture_kappa::myInc ompressibleTwoPhaseMixture_kappa(Foam::GeometricFi eld<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&) at ~/OpenFOAM/vmg-2.3.0/src/transportModels/incompressible2/myIncompressibleTwoPhaseMixture_kappa/myIncompressibleTwoPhaseMixture_kappa.C:117 (discriminator 18) #11 at ~/OpenFOAM/vmg-2.3.0/applications/solvers/multiphase/interTempFoam_kappa/createFields.H:51 #12 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #13 at ??:? I have no idea how to solve this problem. Could anybody please help me I use version 2.3.0 best regards |
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July 20, 2018, 03:37 |
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#2 | |
Member
Atul Kumar
Join Date: Dec 2015
Location: National Centre for Combustion Research and Development
Posts: 48
Rep Power: 11 |
Quote:
Check with T.ref()[cellI] rather than T[cellI] also try to change in I got sort same error while I had written Chapman-Enscog model of transport in src/ThermoPhysicalModel/species/Transport/chapman Please see implementation |
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