functionObjects::enstrophy: new functionObject to calculate the enstrophy of the velocity

src/postProcessing/functionObjects/field/Make/files

@@ -37,6 +37,7 @@ div/div.C
 grad/grad.C
 mag/mag.C
 vorticity/vorticity.C
+enstrophy/enstrophy.C
 Q/Q.C
 Lambda2/Lambda2.C
 flowType/flowType.C

src/postProcessing/functionObjects/field/enstrophy/enstrophy.C

@@ -0,0 +1,88 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2016 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/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "enstrophy.H"
+#include "fvcCurl.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace functionObjects
+{
+    defineTypeNameAndDebug(enstrophy, 0);
+
+    addToRunTimeSelectionTable
+    (
+        functionObject,
+        enstrophy,
+        dictionary
+    );
+}
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::functionObjects::enstrophy::enstrophy
+(
+    const word& name,
+    const Time& runTime,
+    const dictionary& dict
+)
+:
+    fieldExpression(name, runTime, dict, "U", "enstrophy")
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::functionObjects::enstrophy::~enstrophy()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+bool Foam::functionObjects::enstrophy::execute(const bool postProcess)
+{
+    if (foundField<volVectorField>(fieldName_))
+    {
+        return store
+        (
+            resultName_,
+            0.5*magSqr(fvc::curl(lookupField<volVectorField>(fieldName_)))
+        );
+    }
+    else
+    {
+        return false;
+    }
+
+    return true;
+}
+
+
+// ************************************************************************* //

src/postProcessing/functionObjects/field/enstrophy/enstrophy.H

@@ -0,0 +1,100 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2016 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/>.
+
+Class
+    Foam::functionObjects::enstrophy
+
+Group
+    grpFieldFunctionObjects
+
+Description
+    This function object calculates the enstrophy of the velocity.
+
+SeeAlso
+    Foam::functionObjects::fieldExpression
+    Foam::functionObjects::fvMeshFunctionObject
+
+SourceFiles
+    enstrophy.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef functionObjects_enstrophy_H
+#define functionObjects_enstrophy_H
+
+#include "fieldExpression.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace functionObjects
+{
+
+/*---------------------------------------------------------------------------*\
+                          Class enstrophy Declaration
+\*---------------------------------------------------------------------------*/
+
+class enstrophy
+:
+    public fieldExpression
+{
+
+public:
+
+    //- Runtime type information
+    TypeName("enstrophy");
+
+
+    // Constructors
+
+        //- Construct from Time and dictionary
+        enstrophy
+        (
+            const word& name,
+            const Time& runTime,
+            const dictionary& dict
+        );
+
+
+    //- Destructor
+    virtual ~enstrophy();
+
+
+    // Member Functions
+
+        //- Calculate the enstrophy field
+        virtual bool execute(const bool postProcess = false);
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace functionObjects
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //