PisoFoam: block-coupled U test version of pisoFoam

applications/test/PisoFoam/Make/files

+PisoFoam.C
+
+EXE = $(FOAM_USER_APPBIN)/PisoFoam

applications/test/PisoFoam/Make/options

+EXE_INC = \
+    -I$(LIB_SRC)/turbulenceModels/incompressible/turbulenceModel \
+    -I$(LIB_SRC)/transportModels \
+    -I$(LIB_SRC)/transportModels/incompressible/singlePhaseTransportModel \
+    -I$(LIB_SRC)/finiteVolume/lnInclude
+
+EXE_LIBS = \
+    -lincompressibleTurbulenceModel \
+    -lincompressibleRASModels \
+    -lincompressibleLESModels \
+    -lincompressibleTransportModels \
+    -lfiniteVolume \
+    -lmeshTools

applications/test/PisoFoam/PisoFoam.C

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2012 OpenFOAM Foundation
+     \\/     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 3 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, see <http://www.gnu.org/licenses/>.
+
+Application
+    pisoFoam
+
+Description
+    Transient solver for incompressible flow.
+
+    Turbulence modelling is generic, i.e. laminar, RAS or LES may be selected.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+#include "singlePhaseTransportModel.H"
+#include "turbulenceModel.H"
+
+#include "LduMatrix.H"
+#include "diagTensorField.H"
+
+typedef LduMatrix<vector, scalar, scalar> lduVectorMatrix;
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+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;
+
+    while (runTime.loop())
+    {
+        Info<< "Time = " << runTime.timeName() << nl << endl;
+
+        #include "readPISOControls.H"
+        #include "CourantNo.H"
+
+        // Pressure-velocity PISO corrector
+        {
+            // Momentum predictor
+
+            fvVectorMatrix UEqn
+            (
+                fvm::ddt(U)
+              + fvm::div(phi, U)
+              + turbulence->divDevReff(U)
+            );
+
+            //UEqn.relax();
+
+            fvVectorMatrix UEqnp(UEqn == -fvc::grad(p));
+
+            lduVectorMatrix U3Eqnp(mesh);
+            U3Eqnp.diag() = UEqnp.diag();
+            U3Eqnp.upper() = UEqnp.upper();
+            U3Eqnp.lower() = UEqnp.lower();
+            U3Eqnp.source() = UEqnp.source();
+
+            UEqnp.addBoundaryDiag(U3Eqnp.diag(), 0);
+            UEqnp.addBoundarySource(U3Eqnp.source(), false);
+
+            U3Eqnp.interfaces() = U.boundaryField().interfaces();
+            U3Eqnp.interfacesUpper() = UEqnp.boundaryCoeffs().component(0);
+            U3Eqnp.interfacesLower() = UEqnp.internalCoeffs().component(0);
+
+            autoPtr<lduVectorMatrix::solver> U3EqnpSolver =
+            lduVectorMatrix::solver::New
+            (
+                U.name(),
+                U3Eqnp,
+                dictionary
+                (
+                    IStringStream
+                    (
+                        "{"
+                        "    /*solver          SmoothSolver;*/"
+                        "    smoother        GaussSeidel;"
+                        "    solver           PBiCG;"
+                        "    preconditioner   DILU;"
+                        "    tolerance        (1e-7 1e-7 1);"
+                        "    relTol           (0 0 0);"
+                        "}"
+                    )()
+                )
+            );
+
+            //for (int i=0; i<3; i++)
+            {
+                U3EqnpSolver->solve(U).print(Info);
+                U.correctBoundaryConditions();
+            }
+            //solve(UEqnp);
+
+            // --- PISO loop
+
+            for (int corr=0; corr<nCorr; corr++)
+            {
+                volScalarField rAU(1.0/UEqn.A());
+
+                volVectorField HbyA("HbyA", U);
+                HbyA = rAU*UEqn.H();
+                surfaceScalarField phiHbyA
+                (
+                    "phiHbyA",
+                    (fvc::interpolate(HbyA) & mesh.Sf())
+                  + fvc::ddtPhiCorr(rAU, U, phi)
+                );
+
+                adjustPhi(phiHbyA, U, p);
+
+                // Non-orthogonal pressure corrector loop
+                for (int nonOrth=0; nonOrth<=nNonOrthCorr; nonOrth++)
+                {
+                    // Pressure corrector
+
+                    fvScalarMatrix pEqn
+                    (
+                        fvm::laplacian(rAU, p) == fvc::div(phiHbyA)
+                    );
+
+                    pEqn.setReference(pRefCell, pRefValue);
+
+                    if
+                    (
+                        corr == nCorr-1
+                     && nonOrth == nNonOrthCorr
+                    )
+                    {
+                        pEqn.solve(mesh.solver("pFinal"));
+                    }
+                    else
+                    {
+                        pEqn.solve();
+                    }
+
+                    if (nonOrth == nNonOrthCorr)
+                    {
+                        phi = phiHbyA - pEqn.flux();
+                    }
+                }
+
+                #include "continuityErrs.H"
+
+                U = HbyA - rAU*fvc::grad(p);
+                U.correctBoundaryConditions();
+            }
+        }
+
+        turbulence->correct();
+
+        runTime.write();
+
+        Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
+            << "  ClockTime = " << runTime.elapsedClockTime() << " s"
+            << nl << endl;
+    }
+
+    Info<< "End\n" << endl;
+
+    return 0;
+}
+
+
+// ************************************************************************* //

applications/test/PisoFoam/createFields.H

+    Info<< "Reading field p\n" << endl;
+    volScalarField p
+    (
+        IOobject
+        (
+            "p",
+            runTime.timeName(),
+            mesh,
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        mesh
+    );
+
+    Info<< "Reading field U\n" << endl;
+    volVectorField U
+    (
+        IOobject
+        (
+            "U",
+            runTime.timeName(),
+            mesh,
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        mesh
+    );
+
+#   include "createPhi.H"
+
+
+    label pRefCell = 0;
+    scalar pRefValue = 0.0;
+    setRefCell(p, mesh.solutionDict().subDict("PISO"), pRefCell, pRefValue);
+
+
+    singlePhaseTransportModel laminarTransport(U, phi);
+
+    autoPtr<incompressible::turbulenceModel> turbulence
+    (
+        incompressible::turbulenceModel::New(U, phi, laminarTransport)
+    );