fixedShearStressFvPatchVectorField.H

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

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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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    for more details.

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Class
    Foam::fixedShearStressFvPatchVectorField

Group
    grpTurbulenceBoundaryConditions

Description
    Set a constant shear stress as tau0 = -nuEff dU/dn.

SourceFiles
    fixedShearStressFvPatchVectorField.C

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

#ifndef fixedShearStressFvPatchVectorField_H
#define fixedShearStressFvPatchVectorField_H

#include "fvPatchFields.H"
#include "fixedValueFvPatchFields.H"

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
            Class fixedShearStressFvPatchVectorField Declaration
\*---------------------------------------------------------------------------*/

class fixedShearStressFvPatchVectorField
:
    public fixedValueFvPatchVectorField
{
    // Private data

        //- Constant shear stress
        const vector tau0_;


public:

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


    // Constructors

        //- Construct from patch and internal field
        fixedShearStressFvPatchVectorField
        (
            const fvPatch&,
            const DimensionedField<vector, volMesh>&
        );

        //- Construct from patch, internal field and dictionary
        fixedShearStressFvPatchVectorField
        (
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const dictionary&
        );

        //- Construct by mapping given
        fixedShearStressFvPatchVectorField
        (
            const fixedShearStressFvPatchVectorField&,
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const fvPatchFieldMapper&
        );

        //- Construct as copy
        fixedShearStressFvPatchVectorField
        (
            const fixedShearStressFvPatchVectorField&
        );

        //- Construct and return a clone
        virtual tmp<fvPatchVectorField> clone() const
        {
            return tmp<fvPatchVectorField>
            (
                new fixedShearStressFvPatchVectorField(*this)
            );
        }

        //- Construct as copy setting internal field reference
        fixedShearStressFvPatchVectorField
        (
            const fixedShearStressFvPatchVectorField&,
            const DimensionedField<vector, volMesh>&
        );

        //- Construct and return a clone setting internal field reference
        virtual tmp<fvPatchVectorField> clone
        (
            const DimensionedField<vector, volMesh>& iF
        ) const
        {
            return tmp<fvPatchVectorField>
            (
                new fixedShearStressFvPatchVectorField(*this, iF)
            );
        }


    // Member functions

        //- Update the coefficients associated with the patch field
        virtual void updateCoeffs();

        //- Write
        virtual void write(Ostream&) const;
};


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

} // End namespace Foam

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

#endif

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