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March 16, 2020, 22:05 |
rhoPimpleFoam not solving my case
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New Member
Kevin
Join Date: Mar 2020
Posts: 1
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Hello guys! I am very new to OpenFoam and new to this forum as well. I would like to ask you a question about an OpenFoam case that I have. I am trying to simulate the flow from a large container with p1 going through a pressure restriction into atmospheric pressure. I am using rhoPimpleFoam solver, however whenever I run it, it does not solve any iteration (see the attached code output). It seems like it is not loading some settings, however, I am not sure which. I am also adding codes of my respective files. I used gmsh to generate the geometry and mesh and then converted it using gmshToFoam which worked fine. This exact same case worked with water but when I try to change the settings to air, this is what happens. Could anyone please give me a hand with what might the issue be? Thank you very much!!
Output after rhoPimpleFoam Code:
Create time Create mesh for time = 0 PIMPLE: Convergence criteria found U: tolerance 1e-05 p: tolerance 1e-05 "(k|epsilon|omega)": tolerance 1e-05 nOuterCorrectors: tolerance 2 nCorrectors: tolerance 1 nNonOrthogonalCorrectors: tolerance 0 PIMPLE: No corrector convergence criteria found Calculations will do 2 corrections PIMPLE: Operating solver in transient mode with 2 outer correctors Reading thermophysical properties Selecting thermodynamics package { type hePsiThermo; mixture pureMixture; transport const; thermo hConst; equationOfState perfectGas; specie specie; energy sensibleInternalEnergy; } Code:
/*--------------------------------*- C++ -*----------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 7 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; location "constant"; object thermophysicalProperties; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // thermoType { type hePsiThermo; mixture pureMixture; transport const; thermo hConst; equationOfState perfectGas; specie specie; energy sensibleInternalEnergy; } mixture { specie { molWeight 11640.3; } thermodynamics { Cp 2.5; Hf 0; } transport { mu 0; Pr 1; } } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 7 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; location "system"; object controlDict; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // application rhoPimpleFoam; startFrom startTime; startTime 0; stopAt endTime; endTime 1; deltaT 5e-05; writeControl runTime; writeInterval 5; purgeWrite 0; writeFormat ascii; writePrecision 6; writeCompression off; timeFormat general; timePrecision 6; runTimeModifiable true; adjustTimeStep true; // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 7 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; location "system"; object fvSchemes; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // ddtSchemes { default Euler; } gradSchemes { default Gauss linear; } divSchemes { default none; div(phi,U) Gauss upwind; div(phid,p) Gauss limitedLinear 1; div(phi,e) Gauss limitedLinear 1; div(phi,K) Gauss limitedLinear 1; div(phiv,p) Gauss limitedLinear 1; div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear; } laplacianSchemes { default Gauss linear corrected; } interpolationSchemes { default linear; } snGradSchemes { default corrected; } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 7 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class dictionary; location "system"; object fvSolution; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // solvers { "p.*" { solver smoothSolver; smoother symGaussSeidel; tolerance 1e-06; relTol 0; } "(U|e).*" { $p; tolerance 1e-05; relTol 0; } "rho.*" { solver PCG; preconditioner DIC; tolerance 1e-05; relTol 0; } } PIMPLE { nOuterCorrectors 2; nCorrectors 1; nNonOrthogonalCorrectors 0; transonic yes; residualControl { U 1e-5; p 1e-5; "(k|epsilon|omega)" 1e-5; nOuterCorrectors 2; nCorrectors 1; nNonOrthogonalCorrectors 0; } } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 7 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volScalarField; location "0"; object p; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [1 -1 -2 0 0 0 0]; internalField nonuniform List<scalar> boundaryField { backfront { type empty; } outerWall { type zeroGradient; } nozzle { type fixedValue; value uniform 0; } axis { type symmetryPlane; } } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 7 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volScalarField; object T; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 0 0 1 0 0 0]; internalField uniform 300; boundaryField { outerWall { type fixedValue; value $internalField; } axis { type symmetryPlane; } nozzle { type zeroGradient; } backfront { type empty; } //front //{ // type empty; //} } // ************************************************************************* // Code:
/*--------------------------------*- C++ -*----------------------------------*\ ========= | \\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / O peration | Website: https://openfoam.org \\ / A nd | Version: 7 \\/ M anipulation | \*---------------------------------------------------------------------------*/ FoamFile { version 2.0; format ascii; class volVectorField; object U; } // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // dimensions [0 1 -1 0 0 0 0]; internalField uniform (0 0 0); boundaryField { outerWall { type noSlip; } axis { type symmetryPlane; } nozzle { type zeroGradient; } backfront { type empty; } //front //{ // type empty; //} } // ************************************************************************* // |
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Tags |
cfd, error, openfoam, rhopimplefoam |
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