Add the OpenFOAM source tree

applications/utilities/postProcessing/velocityField/Mach/Mach.C

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+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2013 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
+    Mach
+
+Description
+    Calculates and optionally writes the local Mach number from the velocity
+    field U at each time.
+
+    The -nowrite option just outputs the max value without writing the field.
+
+\*---------------------------------------------------------------------------*/
+
+#include "calc.H"
+#include "fluidThermo.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+void Foam::calc(const argList& args, const Time& runTime, const fvMesh& mesh)
+{
+    bool writeResults = !args.optionFound("noWrite");
+
+    IOobject Uheader
+    (
+        "U",
+        runTime.timeName(),
+        mesh,
+        IOobject::MUST_READ
+    );
+
+    IOobject Theader
+    (
+        "T",
+        runTime.timeName(),
+        mesh,
+        IOobject::MUST_READ
+    );
+
+    // Check U and T exists
+    if (Uheader.headerOk() && Theader.headerOk())
+    {
+        autoPtr<volScalarField> MachPtr;
+
+        volVectorField U(Uheader, mesh);
+
+        if
+        (
+            IOobject
+            (
+                "thermophysicalProperties",
+                runTime.constant(),
+                mesh
+            ).headerOk()
+        )
+        {
+            // thermophysical Mach
+            autoPtr<fluidThermo> thermo
+            (
+                fluidThermo::New(mesh)
+            );
+
+            volScalarField Cp(thermo->Cp());
+            volScalarField Cv(thermo->Cv());
+
+            MachPtr.set
+            (
+                new volScalarField
+                (
+                    IOobject
+                    (
+                        "Ma",
+                        runTime.timeName(),
+                        mesh
+                    ),
+                    mag(U)/(sqrt((Cp/Cv)*(Cp - Cv)*thermo->T()))
+                )
+            );
+        }
+        else
+        {
+            // thermodynamic Mach
+            IOdictionary thermoProps
+            (
+                IOobject
+                (
+                    "thermodynamicProperties",
+                    runTime.constant(),
+                    mesh,
+                    IOobject::MUST_READ_IF_MODIFIED,
+                    IOobject::NO_WRITE
+                )
+            );
+
+            dimensionedScalar R(thermoProps.lookup("R"));
+            dimensionedScalar Cv(thermoProps.lookup("Cv"));
+
+            volScalarField T(Theader, mesh);
+
+            MachPtr.set
+            (
+                new volScalarField
+                (
+                    IOobject
+                    (
+                        "Ma",
+                        runTime.timeName(),
+                        mesh
+                    ),
+                    mag(U)/(sqrt(((Cv + R)/Cv)*R*T))
+                )
+            );
+        }
+
+        Info<< "Mach max : " << max(MachPtr()).value() << endl;
+
+        if (writeResults)
+        {
+            MachPtr().write();
+        }
+    }
+    else
+    {
+        Info<< "    Missing U or T" << endl;
+    }
+
+    Info<< "\nEnd\n" << endl;
+}
+
+
+// ************************************************************************* //