Add the OpenFOAM source tree

applications/utilities/postProcessing/velocityField/enstrophy/enstrophy.C

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+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011 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
+    enstrophy
+
+Description
+    Calculates and writes the enstrophy of the velocity field U.
+
+    The -noWrite option just outputs the max/min values without writing the
+    field.
+
+\*---------------------------------------------------------------------------*/
+
+#include "calc.H"
+#include "fvc.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
+    );
+
+    if (Uheader.headerOk())
+    {
+        Info<< "    Reading U" << endl;
+        volVectorField U(Uheader, mesh);
+
+        Info<< "    Calculating enstrophy" << endl;
+        volScalarField enstrophy
+        (
+            IOobject
+            (
+                "enstrophy",
+                runTime.timeName(),
+                mesh,
+                IOobject::NO_READ
+            ),
+            0.5*magSqr(fvc::curl(U))
+        );
+
+        Info<< "enstrophy(U) max/min : "
+            << max(enstrophy).value() << " "
+            << min(enstrophy).value() << endl;
+
+        if (writeResults)
+        {
+            enstrophy.write();
+        }
+    }
+    else
+    {
+        Info<< "    No U" << endl;
+    }
+
+    Info<< "\nEnd\n" << endl;
+}
+
+
+// ************************************************************************* //