Lambda2.H

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/*---------------------------------------------------------------------------*\
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    \\  /    A nd           | Copyright (C) 2013-2016 OpenFOAM Foundation
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License
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Class
    Foam::functionObjects::Lambda2

Group
    grpFieldFunctionObjects

Description
    Calculates and outputs the second largest eigenvalue of the sum of the
    square of the symmetrical and anti-symmetrical parts of the velocity
    gradient tensor.

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

SourceFiles
    Lambda2.C

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

#ifndef functionObjects_Lambda2_H
#define functionObjects_Lambda2_H

#include "fieldExpression.H"

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

namespace Foam
{
namespace functionObjects
{

/*---------------------------------------------------------------------------*\
                          Class Lambda2 Declaration
\*---------------------------------------------------------------------------*/

class Lambda2
:
    public fieldExpression
{
    // Private Member Functions

        //- Calculate the Lambda2 field and return true if successful
        virtual bool calc();


public:

    //- Runtime type information
    TypeName("Lambda2");


    // Constructors

        //- Construct from Time and dictionary
        Lambda2
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );


    //- Destructor
    virtual ~Lambda2();
};


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

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

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

#endif

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