[Lucie]

Hi,

I did a chtMultiRegionSimpleFoam case with radiation, convection and conduction between 4 solids and the air around. This model works fine in 2D with frontAndBack with "empty" condition, but when I did the same in 3D I have a problem. The calcul doesn't run ! There is only one iteration and only for displacement solver. The run stopped before h is calculated.

Do you know where the problem could be?




/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.3.x |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
/* Windows port by CFD support (www.cfdsupport.com) [based on Symscape] *\
\*---------------------------------------------------------------------------*/
Build : 2.3.x-819030ed51bd
nProcs : 1
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Disallowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create fluid mesh for region domain0 for time = 0

Create solid mesh for region Solid1 for time = 0

Create solid mesh for region Solid2 for time = 0

Create solid mesh for region Solid3 for time = 0

Create solid mesh for region Solid4 for time = 0

*** Reading fluid mesh thermophysical properties for region domain0

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 turbulence

Selecting turbulence model type RASModel
Selecting RAS turbulence model kEpsilon
kEpsilonCoeffs
{
Cmu 0.09;
C1 1.44;
C2 1.92;
C3 -0.33;
sigmak 1;
sigmaEps 1.3;
Prt 1;
}

Adding to ghFluid

Adding to ghfFluid

Selecting radiationModel P1
Selecting absorptionEmissionModel constantAbsorptionEmission
Selecting scatterModel none
Selecting sootModel none
Adding fvOptions

No finite volume options present

*** Reading solid mesh thermophysical properties for region Solid1

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
Adding fvOptions

No finite volume options present

*** Reading solid mesh thermophysical properties for region Solid2

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
Adding fvOptions

No finite volume options present

*** Reading solid mesh thermophysical properties for region Solid3

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
Adding fvOptions

No finite volume options present

*** Reading solid mesh thermophysical properties for region Solid4

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
Adding fvOptions

No finite volume options present

Time = 1


Solving for fluid region domain0
DILUPBiCG: Solving for Ux, Initial residual = 1, Final residual = 0.02938802, No Iterations 1
DILUPBiCG: Solving for Uy, Initial residual = 1, Final residual = 0.008910754, No Iterations 1
DILUPBiCG: Solving for Uz, Initial residual = 1, Final residual = 0.0291222, No Iterations 1

[zfaraday]

Hi Lucie,

You need to provide more information if you want to get some help from the forum. It is impossible to diagnose anything with the few information you gave us... You didn't even attach the error message!!!

Information such as boundary conditions, fvSolution, error message shown by the solver is usually needed in order to be able to find out what is going wrong!

Best regards,

Alex

[visheshkapoor06]

please provide with the error message.