div.H

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License
    This file is part of OpenFOAM.

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Class
    Foam::functionObjects::div

Description
    Calculates the divergence of a field.  The operation is limited to
    surfaceScalarFields and volVectorFields, and the output is a volScalarField.

See also
    Foam::functionObjects::fieldExpression
    Foam::functionObjects::fvMeshFunctionObject

SourceFiles
    div.C

\*---------------------------------------------------------------------------*/

#ifndef functionObjects_div_H
#define functionObjects_div_H

#include "fieldExpression.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace functionObjects
{

/*---------------------------------------------------------------------------*\
                             Class div Declaration
\*---------------------------------------------------------------------------*/

class div
:
    public fieldExpression
{
    // Private Member Functions

        //- Calculate the divergence of either a
        //  volScalarField or a surfaceScalarField and register the result
        template<class FieldType>
        bool calcDiv();

        //- Calculate the divergence field and return true if successful
        virtual bool calc();


public:

    //- Runtime type information
    TypeName("div");


    // Constructors

        //- Construct from Time and dictionary
        div
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );


    //- Destructor
    virtual ~div();
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace functionObjects
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#ifdef NoRepository
    #include "divTemplates.C"
#endif

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //