patchMeanVelocityForce.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2015-2017 OpenFOAM Foundation
-------------------------------------------------------------------------------
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
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    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::fv::patchMeanVelocityForce
 
Description
    Calculates and applies the force necessary to maintain the specified mean
    velocity averaged over the specified patch.
 
    Note: Currently only handles kinematic pressure (incompressible solvers).
 
Usage
    Example usage:
    \verbatim
    selectionMode   all;                    // Apply force to all cells
    fields          (U);                    // Name of velocity field
    patch           inlet;                  // Name of the patch
    Ubar            (10.0 0 0);             // Desired mean velocity
    relaxation      0.2;                    // Optional relaxation factor
    \endverbatim
 
SourceFiles
    patchMeanVelocityForce.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef patchMeanVelocityForce_H
#define patchMeanVelocityForce_H
 
#include "meanVelocityForce.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace fv
{
 
/*---------------------------------------------------------------------------*\
               Class patchMeanVelocityForce Declaration
\*---------------------------------------------------------------------------*/
 
class patchMeanVelocityForce
:
    public meanVelocityForce
{
protected:
 
    // Protected data
 
        //- Patch name
        word patch_;
 
        //- Patch index
        label patchi_;
 
 
    // Protected Member Functions
 
        //- Calculate and return the magnitude of the mean velocity
        //  averaged over the specified patch
        virtual scalar magUbarAve(const volVectorField& U) const;
 
 
private:
 
    // Private Member Functions
 
        //- No copy construct
        patchMeanVelocityForce(const patchMeanVelocityForce&) = delete;
 
        //- No copy assignment
        void operator=(const patchMeanVelocityForce&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("patchMeanVelocityForce");
 
 
    // Constructors
 
        //- Construct from explicit source name and mesh
        patchMeanVelocityForce
        (
            const word& sourceName,
            const word& modelType,
            const dictionary& dict,
            const fvMesh& mesh
        );
 
 
    //- Destructor
    ~patchMeanVelocityForce() = default;
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //