waveSurfacePressureFvPatchScalarField.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 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.
 
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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::waveSurfacePressureFvPatchScalarField
 
Group
    grpInletBoundaryConditions
 
Description
    This is a pressure boundary condition, whose value is calculated as
    the hydrostatic pressure based on a given displacement:
 
        \f[
            p = -\rho*g*\zeta
        \f]
 
    \vartable
        \rho  | density [kg/m3]
        g     | acceleration due to gravity [m/s2]
        \zeta | wave amplitude [m]
    \endvartable
 
    The wave amplitude is updated as part of the calculation, derived from the
    local volumetric flux.
 
Usage
    \table
        Property     | Description             | Required    | Default value
        phi          | flux field name         | no          | phi
        rho          | density field name      | no          | rho
        zeta         | wave amplitude field name | no        | zeta
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        type            waveSurfacePressure;
        phi             phi;
        rho             rho;
        zeta            zeta;
        value           uniform 0;  // place holder
    }
    \endverbatim
 
    The density field is only required if the flux is mass-based as opposed to
    volumetric-based.
 
See also
    Foam::fixedValueFvPatchField
 
SourceFiles
    waveSurfacePressureFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef waveSurfacePressureFvPatchScalarField_H
#define waveSurfacePressureFvPatchScalarField_H
 
#include "fixedValueFvPatchFields.H"
#include "Enum.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
            Class waveSurfacePressureFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class waveSurfacePressureFvPatchScalarField
:
    public fixedValueFvPatchScalarField
{
public:
 
    // Public data
 
        //- Enumeration defining the available ddt schemes
        enum ddtSchemeType
        {
            tsEuler,
            tsCrankNicolson,
            tsBackward
        };
 
 
private:
 
    // Private data
 
        //- Flux field name
        word phiName_;
 
        //- Wave height field name
        word zetaName_;
 
        //- Density field for mass-based flux evaluations
        word rhoName_;
 
        //- Time scheme type names
        static const Enum<ddtSchemeType> ddtSchemeTypeNames_;
 
 
public:
 
    //- Runtime type information
    TypeName("waveSurfacePressure");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        waveSurfacePressureFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        waveSurfacePressureFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given waveSurfacePressureFvPatchScalarField
        //  onto a new patch
        waveSurfacePressureFvPatchScalarField
        (
            const waveSurfacePressureFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        waveSurfacePressureFvPatchScalarField
        (
            const waveSurfacePressureFvPatchScalarField&
        );
 
        //- Construct and return a clone
        virtual tmp<fvPatchScalarField> clone() const
        {
            return tmp<fvPatchScalarField>
            (
                new waveSurfacePressureFvPatchScalarField(*this)
            );
        }
 
        //- Construct as copy setting internal field reference
        waveSurfacePressureFvPatchScalarField
        (
            const waveSurfacePressureFvPatchScalarField&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct and return a clone setting internal field reference
        virtual tmp<fvPatchScalarField> clone
        (
            const DimensionedField<scalar, volMesh>& iF
        ) const
        {
            return tmp<fvPatchScalarField>
            (
                new waveSurfacePressureFvPatchScalarField(*this, iF)
            );
        }
 
 
    // Member functions
 
        // Evaluation functions
 
            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();
 
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //