rhoLTSPimpleFoam: New solver and test case.

Supports local time-stepping for steady solution.

applications/solvers/compressible/rhoPimpleFoam/Allwmake

@@ -3,6 +3,7 @@ cd ${0%/*} || exit 1    # run from this directory
 set -x
 
 wmake
+wmake rhoLTSPimpleFoam
 wmake rhoPorousMRFPimpleFoam
 
 # ----------------------------------------------------------------- end-of-file

applications/solvers/compressible/rhoPimpleFoam/rhoLTSPimpleFoam/Make/files

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

applications/solvers/compressible/rhoPimpleFoam/rhoLTSPimpleFoam/Make/options

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

applications/solvers/compressible/rhoPimpleFoam/rhoLTSPimpleFoam/rhoLTSPimpleFoam.C

+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2010-2011 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 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
+    rhoLTSPimpleFoam
+
+Description
+    Transient solver for laminar or turbulent flow of compressible fluids
+    for HVAC and similar applications.
+
+    Uses the flexible PIMPLE (PISO-SIMPLE) solution for time-resolved and
+    pseudo-transient simulations with support for local time-stepping for
+    efficient steady-state solution.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+#include "basicPsiThermo.H"
+#include "turbulenceModel.H"
+#include "fvcSmooth.H"
+#include "bound.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+int main(int argc, char *argv[])
+{
+    #include "setRootCase.H"
+    #include "createTime.H"
+    #include "createMesh.H"
+    #include "readPIMPLEControls.H"
+    #include "setInitialrDeltaT.H"
+    #include "createFields.H"
+    #include "initContinuityErrs.H"
+
+    Info<< "\nStarting time loop\n" << endl;
+
+    while (runTime.run())
+    {
+        #include "readTimeControls.H"
+        #include "readPIMPLEControls.H"
+        #include "compressibleCourantNo.H"
+        #include "setDeltaT.H"
+
+        runTime++;
+
+        Info<< "Time = " << runTime.timeName() << nl << endl;
+
+        #include "setrDeltaT.H"
+
+        #include "rhoEqn.H"
+
+        // --- Pressure-velocity PIMPLE corrector loop
+        for (int oCorr=0; oCorr<nOuterCorr; oCorr++)
+        {
+            bool finalIter = oCorr == nOuterCorr-1;
+            if (finalIter)
+            {
+                mesh.data::add("finalIteration", true);
+            }
+
+            if (nOuterCorr != 1)
+            {
+                p.storePrevIter();
+                rho.storePrevIter();
+            }
+
+            #include "UEqn.H"
+            #include "hEqn.H"
+
+            // --- PISO loop
+            for (int corr=0; corr<nCorr; corr++)
+            {
+                #include "pEqn.H"
+            }
+
+            turbulence->correct();
+
+            if (finalIter)
+            {
+                mesh.data::remove("finalIteration");
+            }
+        }
+
+        runTime.write();
+
+        Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
+            << "  ClockTime = " << runTime.elapsedClockTime() << " s"
+            << nl << endl;
+    }
+
+    Info<< "End\n" << endl;
+
+    return 0;
+}
+
+
+// ************************************************************************* //

applications/solvers/compressible/rhoPimpleFoam/rhoLTSPimpleFoam/setInitialrDeltaT.H

+scalar maxDeltaT
+(
+    pimple.lookupOrDefault<scalar>("maxDeltaT", GREAT)
+);
+
+volScalarField rDeltaT
+(
+    IOobject
+    (
+        "rDeltaT",
+        runTime.timeName(),
+        mesh,
+        IOobject::NO_READ,
+        IOobject::AUTO_WRITE
+    ),
+    mesh,
+    1/dimensionedScalar("maxDeltaT", dimTime, maxDeltaT),
+    zeroGradientFvPatchScalarField::typeName
+);

applications/solvers/compressible/rhoPimpleFoam/rhoLTSPimpleFoam/setrDeltaT.H

+{
+    scalar maxCo
+    (
+        pimple.lookupOrDefault<scalar>("maxCo", 0.8)
+    );
+
+    scalar rDeltaTSmoothingCoeff
+    (
+        pimple.lookupOrDefault<scalar>("rDeltaTSmoothingCoeff", 0.02)
+    );
+
+    scalar rDeltaTDampingCoeff
+    (
+        pimple.lookupOrDefault<scalar>("rDeltaTDampingCoeff", 1.0)
+    );
+
+    scalar maxDeltaT
+    (
+        pimple.lookupOrDefault<scalar>("maxDeltaT", GREAT)
+    );
+
+    volScalarField rDeltaT0 = rDeltaT;
+
+    // Set the reciprocal time-step from the local Courant number
+    rDeltaT.dimensionedInternalField() = max
+    (
+        1/dimensionedScalar("maxDeltaT", dimTime, maxDeltaT),
+        fvc::surfaceSum(mag(phi))().dimensionedInternalField()
+       /((2*maxCo)*mesh.V()*rho.dimensionedInternalField())
+    );
+
+    if (transonic)
+    {
+        surfaceScalarField phid
+        (
+            "phid",
+            fvc::interpolate(psi)*(fvc::interpolate(U) & mesh.Sf())
+        );
+
+        rDeltaT.dimensionedInternalField() = max
+        (
+            rDeltaT.dimensionedInternalField(),
+            fvc::surfaceSum(mag(phid))().dimensionedInternalField()
+            /((2*maxCo)*mesh.V()*psi.dimensionedInternalField())
+        );
+    }
+
+    // Update tho boundary values of the reciprocal time-step
+    rDeltaT.correctBoundaryConditions();
+
+    Info<< "Flow time scale min/max = "
+        << gMin(1/rDeltaT.internalField())
+        << ", " << gMax(1/rDeltaT.internalField()) << endl;
+
+    if (rDeltaTSmoothingCoeff < 1.0)
+    {
+        fvc::smooth(rDeltaT, rDeltaTSmoothingCoeff);
+    }
+
+    Info<< "Smoothed flow time scale min/max = "
+        << gMin(1/rDeltaT.internalField())
+        << ", " << gMax(1/rDeltaT.internalField()) << endl;
+
+    // Limit rate of change of time scale
+    // - reduce as much as required
+    // - only increase at a fraction of old time scale
+    if
+    (
+        rDeltaTDampingCoeff < 1.0
+     && runTime.timeIndex() > runTime.startTimeIndex() + 1
+    )
+    {
+        rDeltaT = rDeltaT0*max(rDeltaT/rDeltaT0, 1.0 - rDeltaTDampingCoeff);
+
+        Info<< "Damped flow time scale min/max = "
+            << gMin(1/rDeltaT.internalField())
+            << ", " << gMax(1/rDeltaT.internalField()) << endl;
+    }
+}

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/0/T

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      T;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [0 0 0 1 0 0 0];
+
+internalField   uniform 293;
+
+boundaryField
+{
+
+    front
+    {
+        type            zeroGradient;
+    }
+    back
+    {
+        type            zeroGradient;
+    }
+    wall
+    {
+        type            zeroGradient;
+    }
+    porosityWall
+    {
+        type            zeroGradient;
+    }
+
+    inlet
+    {
+        type            fixedValue;
+        value           $internalField;
+    }
+    outlet
+    {
+        type            inletOutlet;
+        value           $internalField;
+        inletValue      $internalField;
+    }
+}
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/0/U

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     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
+{
+    front
+    {
+        type            fixedValue;
+        value           uniform (0 0 0);
+    }
+    back
+    {
+        type            fixedValue;
+        value           uniform (0 0 0);
+    }
+    wall
+    {
+        type            fixedValue;
+        value           uniform (0 0 0);
+    }
+    porosityWall
+    {
+        type            slip;
+        value           uniform (0 0 0);
+    }
+    inlet
+    {
+        type            flowRateInletVelocity;
+        flowRate        0.1;
+        value           uniform (0 0 0);
+    }
+    outlet
+    {
+        type            fluxCorrectedVelocity; //inletOutlet;
+        value           uniform (0 0 0);
+        inletValue      uniform (0 0 0);
+    }
+}
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/0/alphat

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     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
+{
+    front
+    {
+        type            alphatWallFunction;
+        value           uniform 0;
+    }
+    back
+    {
+        type            alphatWallFunction;
+        value           uniform 0;
+    }
+    wall
+    {
+        type            alphatWallFunction;
+        value           uniform 0;
+    }
+    porosityWall
+    {
+        type            alphatWallFunction;
+        value           uniform 0;
+    }
+    inlet
+    {
+        type            calculated;
+        value           uniform 0;
+    }
+    outlet
+    {
+        type            calculated;
+        value           uniform 0;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/0/epsilon

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     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
+{
+    front
+    {
+        type            compressible::epsilonWallFunction;
+        value           uniform 200;
+    }
+    back
+    {
+        type            compressible::epsilonWallFunction;
+        value           uniform 200;
+    }
+    wall
+    {
+        type            compressible::epsilonWallFunction;
+        value           uniform 200;
+    }
+    porosityWall
+    {
+        type            compressible::epsilonWallFunction;
+        value           uniform 200;
+    }
+    inlet
+    {
+        type            compressible::turbulentMixingLengthDissipationRateInlet;
+        mixingLength    0.005;
+        value           uniform 200;
+    }
+    outlet
+    {
+        type            inletOutlet;
+        inletValue      uniform 200;
+        value           uniform 200;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/0/k

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     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
+{
+    front
+    {
+        type            compressible::kqRWallFunction;
+        value           uniform 1;
+    }
+    back
+    {
+        type            compressible::kqRWallFunction;
+        value           uniform 1;
+    }
+    wall
+    {
+        type            compressible::kqRWallFunction;
+        value           uniform 1;
+    }
+    porosityWall
+    {
+        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/rhoLTSPimpleFoam/angledDuct/0/mut

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    location    "0";
+    object      mut;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -1 0 0 0 0];
+
+internalField   uniform 0;
+
+boundaryField
+{
+    front
+    {
+        type            mutkWallFunction;
+        value           uniform 0;
+    }
+    back
+    {
+        type            mutkWallFunction;
+        value           uniform 0;
+    }
+    wall
+    {
+        type            mutkWallFunction;
+        value           uniform 0;
+    }
+    porosityWall
+    {
+        type            mutkWallFunction;
+        value           uniform 0;
+    }
+    inlet
+    {
+        type            calculated;
+        value           uniform 0;
+    }
+    outlet
+    {
+        type            calculated;
+        value           uniform 0;
+    }
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/0/p

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       volScalarField;
+    object      p;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+dimensions      [1 -1 -2 0 0 0 0];
+
+internalField   uniform 1.0e5;
+
+boundaryField
+{
+    front
+    {
+        type            zeroGradient;
+    }
+    back
+    {
+        type            zeroGradient;
+    }
+    wall
+    {
+        type            zeroGradient;
+    }
+    porosityWall
+    {
+        type            zeroGradient;
+    }
+
+    inlet
+    {
+        type            zeroGradient;
+    }
+    outlet
+    {
+        type            fixedValue;
+        value           $internalField;
+    }
+}
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/Allrun

+cd ${0%/*} || exit 1    # run from this directory
+
+m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+
+# Source tutorial run functions
+. $WM_PROJECT_DIR/bin/tools/RunFunctions
+
+runApplication blockMesh
+runApplication `getApplication`

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/RASProperties

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "constant";
+    object      RASProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+RASModel        kEpsilon;
+
+turbulence      on;
+
+printCoeffs     on;
+
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/polyMesh/blockMeshDict.m4

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    `format'      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// block definition for a porosity with an angled inlet/outlet
+// the porosity is not aligned with the main axes
+//
+dnl> -----------------------------------------------------------------
+dnl> <STANDARD DEFINTIONS>
+dnl>
+changecom(//)changequote([,]) dnl>
+define(calc, [esyscmd(perl -e 'print ($1)')]) dnl>
+define(VCOUNT, 0)  dnl>
+define(vlabel, [[// ]pt VCOUNT ($1) define($1, VCOUNT)define([VCOUNT], incr(VCOUNT))])  dnl>
+dnl>
+define(hex2D, hex ($1b $2b $3b $4b $1f $2f $3f $4f)) dnl>
+define(quad2D, ($1f $1b $2b $2f))  dnl>
+define(frontQuad, ($1f $2f $3f $4f)) dnl>
+define(backQuad, ($4b $3b $2b $1b)) dnl>
+dnl>
+dnl> </STANDARD DEFINTIONS>
+dnl> -----------------------------------------------------------------
+dnl>
+define(ncells, 20) dnl>
+define(ninlet, 15) dnl>
+define(nporo, 20) dnl>
+define(noutlet, 20) dnl>
+dnl>
+define(x0,0) dnl>
+define(y0,0) dnl>
+define(y0,0) dnl>
+define(Cos,0.7071067812) dnl>   == cos(45)
+define(Sin,0.7071067812) dnl>   == sin(45)
+dnl>
+define(width,50) dnl>
+define(zBack,calc(-width/2)) dnl>
+define(zFront,calc(width/2)) dnl>
+define(leninlet,150)dnl>
+define(lenporo,100)dnl>
+define(lenoutlet,100)dnl>
+dnl>
+define(xhyp,calc(Sin*width)) dnl>
+define(yhyp,calc(Cos*width)) dnl>
+define(xinlet,leninlet)dnl>
+define(xporo,calc(Cos*lenporo)) dnl>
+define(yporo,calc(Sin*lenporo)) dnl>
+define(xoutlet,calc(xporo + Cos*lenoutlet)) dnl>
+define(youtlet,calc(yporo + Sin*lenoutlet)) dnl>
+dnl>
+
+convertToMeters 0.001;
+
+vertices
+(
+    // inlet region
+    ( -xinlet  y0  zBack )  vlabel(in1b)
+    ( -xinlet yhyp  zBack ) vlabel(in2b)
+    ( -xinlet  y0  zFront )  vlabel(in1f)
+    ( -xinlet yhyp  zFront ) vlabel(in2f)
+
+    // join inlet->outlet
+    (  x0 y0  zBack )    vlabel(join1b)
+    ( -xhyp   yhyp  zBack ) vlabel(join2b)
+    (  x0 y0  zFront )    vlabel(join1f)
+    ( -xhyp   yhyp  zFront ) vlabel(join2f)
+
+    // porosity ends ->outlet
+    ( xporo yporo  zBack )  vlabel(poro1b)
+    ( calc(xporo - xhyp) calc(yporo + yhyp)  zBack )  vlabel(poro2b)
+    ( xporo yporo  zFront )  vlabel(poro1f)
+    ( calc(xporo - xhyp) calc(yporo + yhyp)  zFront )  vlabel(poro2f)
+
+    // outlet
+    ( xoutlet youtlet zBack ) vlabel(out1b)
+    ( calc(xoutlet - xhyp) calc(youtlet + yhyp) zBack ) vlabel(out2b)
+    ( xoutlet youtlet zFront ) vlabel(out1f)
+    ( calc(xoutlet - xhyp) calc(youtlet + yhyp) zFront ) vlabel(out2f)
+);
+
+blocks
+(
+    // inlet block
+    hex2D(in1, join1, join2, in2)
+    inlet ( ninlet ncells ncells ) simpleGrading (1 1 1)
+
+    // porosity block
+    hex2D(join1, poro1, poro2, join2)
+    porosity ( nporo ncells ncells ) simpleGrading (1 1 1)
+
+    // outlet block
+    hex2D(poro1, out1, out2, poro2)
+    outlet ( noutlet ncells ncells )  simpleGrading (1 1 1)
+);
+
+edges
+(
+);
+
+patches
+(
+    // is there no way of defining all my 'defaultFaces' to be 'wall'?
+    wall front
+    (
+    // inlet block
+    frontQuad(in1, join1, join2, in2)
+    // outlet block
+    frontQuad(poro1, out1, out2, poro2)
+    )
+
+    wall back
+    (
+    // inlet block
+    backQuad(in1, join1, join2, in2)
+    // outlet block
+    backQuad(poro1, out1, out2, poro2)
+    )
+
+    wall wall
+    (
+    // inlet block
+    quad2D(in1, join1)
+    quad2D(join2, in2)
+    // outlet block
+    quad2D(poro1, out1)
+    quad2D(out2, poro2)
+    )
+
+    wall porosityWall
+    (
+    // porosity block
+    frontQuad(join1, poro1, poro2, join2)
+    // porosity block
+    backQuad(join1, poro1, poro2, join2)
+    // porosity block
+    quad2D(join1, poro1)
+    quad2D(poro2, join2)
+    )
+
+    patch inlet
+    (
+    quad2D(in2, in1)
+    )
+
+    patch outlet
+    (
+    quad2D(out2, out1)
+    )
+);
+
+mergePatchPairs
+(
+);
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/polyMesh/boundary

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       polyBoundaryMesh;
+    location    "constant/polyMesh";
+    object      boundary;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+6
+(
+    front
+    {
+        type            wall;
+        nFaces          700;
+        startFace       63400;
+    }
+    back
+    {
+        type            wall;
+        nFaces          700;
+        startFace       64100;
+    }
+    wall
+    {
+        type            wall;
+        nFaces          1400;
+        startFace       64800;
+    }
+    porosityWall
+    {
+        type            wall;
+        nFaces          1600;
+        startFace       66200;
+    }
+    inlet
+    {
+        type            patch;
+        nFaces          400;
+        startFace       67800;
+    }
+    outlet
+    {
+        type            patch;
+        nFaces          400;
+        startFace       68200;
+    }
+)
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/porousZones

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "constant";
+    object      porousZones;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+1
+(
+    porosity
+    {
+        coordinateSystem
+        {
+            e1  (0.70710678 0.70710678 0);
+            e2  (0 0 1);
+        }
+
+        Darcy
+        {
+            d   d [0 -2 0 0 0 0 0] (5e7 -1000 -1000);
+            f   f [0 -1 0 0 0 0 0] (0 0 0);
+        }
+    }
+)
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/thermophysicalProperties

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "constant";
+    object      thermophysicalProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+thermoType      hPsiThermo<pureMixture<sutherlandTransport<specieThermo<hConstThermo<perfectGas>>>>>;
+
+mixture
+{
+    nMoles      1;
+    molWeight   28.9;
+    Cp          1007;
+    Hf          0;
+    As          1.4792e-06;
+    Ts          116;
+}
+
+
+// ************************************************************************* //

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/constant/turbulenceProperties

+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    location    "constant";
+    object      turbulenceProperties;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+simulationType  RASModel;
+
+
+// ************************************************************************* //