Added preliminary version of the rhoSimplecFoam code and tutorial case.

This currently only runs in serial, parallelisation is worked on.

applications/solvers/compressible/rhoSimpleFoam/pEqn.H

@@ -27,7 +27,7 @@ if (transonic)
 
         pEqn.setReference(pRefCell, pRefValue);
 
-        // retain the residual from the first iteration
+        // Retain the residual from the first iteration
         if (nonOrth == 0)
         {
             eqnResidual = pEqn.solve().initialResidual();

applications/solvers/compressible/rhoSimplecFoam/Make/files

+rhoSimplecFoam.C
+
+EXE = $(FOAM_APPBIN)/rhoSimplecFoam

applications/solvers/compressible/rhoSimplecFoam/Make/options

+EXE_INC = \
+    -I../rhoSimpleFoam \
+    -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+    -I$(LIB_SRC)/turbulenceModels \
+    -I$(LIB_SRC)/turbulenceModels/compressible/RAS/RASModel \
+    -I$(LIB_SRC)/finiteVolume/cfdTools \
+    -I$(LIB_SRC)/finiteVolume/lnInclude
+
+EXE_LIBS = \
+    -lbasicThermophysicalModels \
+    -lspecie \
+    -lcompressibleRASModels \
+    -lfiniteVolume \
+    -lmeshTools

applications/solvers/compressible/rhoSimplecFoam/UEqn.H

+    // Solve the Momentum equation
+
+    tmp<fvVectorMatrix> UEqn
+    (
+        fvm::div(phi, U)
+      - fvm::Sp(fvc::div(phi), U)
+      + turbulence->divDevRhoReff(U)
+    );
+
+    UEqn().relax();
+
+    eqnResidual = solve
+    (
+        UEqn() == -fvc::grad(p)
+    ).initialResidual();
+
+    maxResidual = max(eqnResidual, maxResidual);

applications/solvers/compressible/rhoSimplecFoam/createFields.H

+    Info<< "Reading thermophysical properties\n" << endl;
+
+    autoPtr<basicPsiThermo> pThermo
+    (
+        basicPsiThermo::New(mesh)
+    );
+    basicPsiThermo& thermo = pThermo();
+
+    volScalarField rho
+    (
+        IOobject
+        (
+            "rho",
+            runTime.timeName(),
+            mesh,
+            IOobject::READ_IF_PRESENT,
+            IOobject::AUTO_WRITE
+        ),
+        thermo.rho()
+    );
+
+    volScalarField& p = thermo.p();
+    volScalarField& h = thermo.h();
+    const volScalarField& psi = thermo.psi();
+
+    Info<< "Reading field U\n" << endl;
+    volVectorField U
+    (
+        IOobject
+        (
+            "U",
+            runTime.timeName(),
+            mesh,
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        mesh
+    );
+
+    #include "compressibleCreatePhi.H"
+
+    label pRefCell = 0;
+    scalar pRefValue = 0.0;
+    setRefCell(p, mesh.solutionDict().subDict("SIMPLE"), pRefCell, pRefValue);
+
+    dimensionedScalar pMin
+    (
+        mesh.solutionDict().subDict("SIMPLE").lookup("pMin")
+    );
+
+    Info<< "Creating turbulence model\n" << endl;
+    autoPtr<compressible::RASModel> turbulence
+    (
+        compressible::RASModel::New
+        (
+            rho,
+            U,
+            phi,
+            thermo
+        )
+    );
+
+    dimensionedScalar initialMass = fvc::domainIntegrate(rho);

applications/solvers/compressible/rhoSimplecFoam/hEqn.H

+{
+    fvScalarMatrix hEqn
+    (
+        fvm::div(phi, h)
+      - fvm::Sp(fvc::div(phi), h)
+      - fvm::laplacian(turbulence->alphaEff(), h)
+     ==
+        fvc::div(phi/fvc::interpolate(rho)*fvc::interpolate(p, "div(U,p)"))
+      - p*fvc::div(phi/fvc::interpolate(rho))
+    );
+
+    hEqn.relax();
+
+    eqnResidual = hEqn.solve().initialResidual();
+    maxResidual = max(eqnResidual, maxResidual);
+
+    thermo.correct();
+
+    rho = thermo.rho();
+
+    if (!transonic)
+    {
+        rho.relax();
+    }
+
+    Info<< "rho max/min : "
+        << max(rho).value() << " "
+        << min(rho).value() << endl;
+}

applications/solvers/compressible/rhoSimplecFoam/pEqn.H

+volScalarField p0 = p;
+
+volScalarField AU = UEqn().A();
+volScalarField AtU = AU - UEqn().H1();
+U = UEqn().H()/AU;
+UEqn.clear();
+
+bool closedVolume = false;
+
+if (transonic)
+{
+    for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
+    {
+        surfaceScalarField phid
+        (
+            "phid",
+            fvc::interpolate(psi*U) & mesh.Sf()
+        );
+
+        surfaceScalarField phic
+        (
+            "phic",
+            fvc::interpolate(rho/AtU - rho/AU)*fvc::snGrad(p)*mesh.magSf()
+          + phid*(fvc::interpolate(p) - fvc::interpolate(p, "UD"))
+        );
+
+        refCast<mixedFvPatchScalarField>(p.boundaryField()[1]).refValue()
+            = p.boundaryField()[1];
+
+        fvScalarMatrix pEqn
+        (
+            fvm::div(phid, p)
+          + fvc::div(phic)
+          - fvm::Sp(fvc::div(phid), p)
+          + fvc::div(phid)*p
+          - fvm::laplacian(rho/AtU, p)
+        );
+
+        pEqn.setReference(pRefCell, pRefValue);
+
+        // Retain the residual from the first iteration
+        if (nonOrth == 0)
+        {
+            eqnResidual = pEqn.solve().initialResidual();
+            maxResidual = max(eqnResidual, maxResidual);
+        }
+        else
+        {
+            pEqn.solve();
+        }
+
+        if (nonOrth == nNonOrthCorr)
+        {
+            phi == phic + pEqn.flux();
+        }
+    }
+}
+else
+{
+    for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
+    {
+        phi = fvc::interpolate(rho*U) & mesh.Sf();
+        closedVolume = adjustPhi(phi, U, p);
+        phi += fvc::interpolate(rho/AtU - rho/AU)*fvc::snGrad(p)*mesh.magSf();
+
+        fvScalarMatrix pEqn
+        (
+            fvc::div(phi)
+        //- fvm::laplacian(rho/AU, p)
+          - fvm::laplacian(rho/AtU, p)
+        );
+
+        pEqn.setReference(pRefCell, pRefValue);
+
+        // Retain the residual from the first iteration
+        if (nonOrth == 0)
+        {
+            eqnResidual = pEqn.solve().initialResidual();
+            maxResidual = max(eqnResidual, maxResidual);
+        }
+        else
+        {
+            pEqn.solve();
+        }
+
+
+        if (nonOrth == nNonOrthCorr)
+        {
+            phi += pEqn.flux();
+        }
+    }
+}
+
+// The incompressibe for of the continuity error check is appropriate for
+// steady-state compressible also.
+#include "incompressible/continuityErrs.H"
+
+// Explicitly relax pressure for momentum corrector
+p.relax();
+
+U -= (fvc::grad(p0)*(1.0/AU - 1.0/AtU) + fvc::grad(p)/AtU);
+//U -= fvc::grad(p)/AU;
+
+U.correctBoundaryConditions();
+
+bound(p, pMin);
+
+// For closed-volume cases adjust the pressure and density levels
+// to obey overall mass continuity
+if (closedVolume)
+{
+    p += (initialMass - fvc::domainIntegrate(psi*p))
+        /fvc::domainIntegrate(psi);
+}
+
+rho = thermo.rho();
+
+if (!transonic)
+{
+    rho.relax();
+}
+
+Info<< "rho max/min : " << max(rho).value() << " " << min(rho).value() << endl;

applications/solvers/compressible/rhoSimplecFoam/rhoSimplecFoam.C

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 2 of the License, or (at your
+    option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Application
+    rhoSimplecFoam
+
+Description
+    Steady-state SIMPLEC solver for laminar or turbulent RANS flow of
+    compressible fluids.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+#include "basicPsiThermo.H"
+#include "RASModel.H"
+#include "mixedFvPatchFields.H"
+#include "bound.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+int main(int argc, char *argv[])
+{
+    #include "setRootCase.H"
+    #include "createTime.H"
+    #include "createMesh.H"
+    #include "createFields.H"
+    #include "initContinuityErrs.H"
+
+    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+    Info<< "\nStarting time loop\n" << endl;
+
+    for (runTime++; !runTime.end(); runTime++)
+    {
+        Info<< "Time = " << runTime.timeName() << nl << endl;
+
+        #include "readSIMPLEControls.H"
+        #include "initConvergenceCheck.H"
+
+        p.storePrevIter();
+
+        if (!transonic)
+        {
+            rho.storePrevIter();
+        }
+
+        // Velocity-pressure-enthalpy SIMPLEC corrector
+        {
+            #include "UEqn.H"
+            #include "pEqn.H"
+            #include "hEqn.H"
+        }
+
+        turbulence->correct();
+
+        runTime.write();
+
+        Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
+            << "  ClockTime = " << runTime.elapsedClockTime() << " s"
+            << nl << endl;
+
+        #include "convergenceCheck.H"
+    }
+
+    Info<< "End\n" << endl;
+
+    return 0;
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoSimplecFoam/squareBend/0/T

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      http://www.OpenFOAM.org               |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      T;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 1 0 0 0];
+
+internalField   uniform 1000;
+
+boundaryField
+{
+    Default_Boundary_Region
+    {
+        type            zeroGradient;
+    }
+
+    inlet
+    {
+        type		fixedValue;
+        value		uniform 1000;
+    }
+
+    outlet
+    {
+        type            inletOutlet;
+        //type            zeroGradient;
+        value           uniform 1000;
+        inletValue      uniform 1000;
+    }
+}
+
+// ************************************************************************* //

tutorials/compressible/rhoSimplecFoam/squareBend/0/U

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      http://www.OpenFOAM.org               |
+|    \\/     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
+{
+    Default_Boundary_Region
+    {
+        type            fixedValue;
+        value           uniform (0 0 0);
+    }
+    inlet
+    {
+        type            flowRateInletVelocity;
+        flowRate        0.5; //0.75;
+        value           uniform (0 0 0);
+    }
+    outlet
+    {
+        type            inletOutlet;
+        value           uniform (0 0 0);
+        inletValue      uniform (0 0 0);
+    }
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoSimplecFoam/squareBend/0/alphat

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      alphat;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -1 0 0 0 0];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    Default_Boundary_Region
+    {
+        type            alphatWallFunction;
+        Prt             0.85;
+        value           uniform 0;
+    }
+    inlet
+    {
+        type            calculated;
+        value           uniform 0;
+    }
+    outlet
+    {
+        type            calculated;
+        value           uniform 0;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoSimplecFoam/squareBend/0/epsilon

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      epsilon;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -3 0 0 0 0];
+
+internalField   uniform 200;
+
+boundaryField
+{
+    Default_Boundary_Region
+    {
+        type            compressible::epsilonWallFunction;
+        Cmu             0.09;
+        kappa           0.41;
+        E               9.8;
+        value           uniform 200;
+    }
+    inlet
+    {
+        type            compressible::turbulentMixingLengthDissipationRateInlet;
+        mixingLength    0.005;
+        value           uniform 200;
+    }
+    outlet
+    {
+        type            inletOutlet;
+        inletValue      uniform 200;
+        value           uniform 200;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoSimplecFoam/squareBend/0/k

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      k;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 2 -2 0 0 0 0];
+
+internalField   uniform 1;
+
+boundaryField
+{
+    Default_Boundary_Region
+    {
+        type            compressible::kqRWallFunction;
+        value           uniform 1;
+    }
+    inlet
+    {
+        type            turbulentIntensityKineticEnergyInlet;
+        intensity       0.05;
+        value           uniform 1;
+    }
+    outlet
+    {
+        type            inletOutlet;
+        inletValue      uniform 1;
+        value           uniform 1;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoSimplecFoam/squareBend/0/mut

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  1.6                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      mut;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+