freestreamVelocityFvPatchVectorField.H

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/*---------------------------------------------------------------------------*\
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-------------------------------------------------------------------------------
    Copyright (C) 2018 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
    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::freestreamVelocityFvPatchVectorField
 
Group
    grpInletBoundaryConditions grpOutletBoundaryConditions
 
Description
    This boundary condition provides a free-stream condition for velocity.
 
    It is an inlet-outlet condition that uses the velocity orientation to
    continuously blend between fixed value for normal inlet and zero gradient
    for normal outlet flow.
 
Usage
    \table
        Property        | Description             | Required    | Default value
        freestreamValue | freestream velocity     | yes         |
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        type            freestreamVelocity;
        freestreamValue uniform (300 0 0);
    }
    \endverbatim
 
Note
    This condition is designed to operate with the freestreamPressure condition
 
See also
    Foam::mixedFvPatchField
    Foam::freestreamFvPatchField
 
SourceFiles
    freestreamVelocityFvPatchVectorField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef freestreamVelocityFvPatchVectorField_H
#define freestreamVelocityFvPatchVectorField_H
 
#include "fvPatchFields.H"
#include "mixedFvPatchFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
             Class freestreamVelocityFvPatchVectorField Declaration
\*---------------------------------------------------------------------------*/
 
class freestreamVelocityFvPatchVectorField
:
    public mixedFvPatchVectorField
{
 
public:
 
    //- Runtime type information
    TypeName("freestreamVelocity");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        freestreamVelocityFvPatchVectorField
        (
            const fvPatch&,
            const DimensionedField<vector, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        freestreamVelocityFvPatchVectorField
        (
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given freestreamVelocityFvPatchVectorField onto
        //  a new patch
        freestreamVelocityFvPatchVectorField
        (
            const freestreamVelocityFvPatchVectorField&,
            const fvPatch&,
            const DimensionedField<vector, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        freestreamVelocityFvPatchVectorField
        (
            const freestreamVelocityFvPatchVectorField&
        );
 
        //- Construct as copy setting internal field reference
        freestreamVelocityFvPatchVectorField
        (
            const freestreamVelocityFvPatchVectorField&,
            const DimensionedField<vector, volMesh>&
        );
 
        //- Return a clone
        virtual tmp<fvPatchField<vector>> clone() const
        {
            return fvPatchField<vector>::Clone(*this);
        }
 
        //- Clone with an internal field reference
        virtual tmp<fvPatchField<vector>> clone
        (
            const DimensionedField<vector, volMesh>& iF
        ) const
        {
            return fvPatchField<vector>::Clone(*this, iF);
        }
 
 
    // Member Functions
 
        //- Same as refValue()
        const vectorField& freestreamValue() const { return refValue(); }
 
        //- Same as refValue()
        vectorField& freestreamValue() { return refValue(); }
 
 
        //- Update the coefficients associated with the patch field
        virtual void updateCoeffs();
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //