prghTotalPressureFvPatchScalarField.H

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    Copyright (C) 2015-2016 OpenFOAM Foundation
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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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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::prghTotalPressureFvPatchScalarField
 
Group
    grpGenericBoundaryConditions
 
Description
    This boundary condition provides static pressure condition for p_rgh,
    calculated as:
 
        \f[
            p_rgh = p - \rho g.(h - hRef)
        \f]
 
        \f[
            p = p0 - 0.5 \rho |U|^2
        \f]
 
    where
    \vartable
        p_rgh   | Pseudo hydrostatic pressure [Pa]
        p       | Static pressure [Pa]
        p0      | Total pressure [Pa]
        h       | Height in the opposite direction to gravity
        hRef    | Reference height in the opposite direction to gravity
        \rho    | Density
        g       | Acceleration due to gravity [m/s^2]
    \endtable
 
Usage
    \table
        Property     | Description             | Required    | Default value
        U            | Velocity field name     | no          | U
        phi          | Flux field name         | no          | phi
        rho          | Density field name      | no          | rho
        p0           | Total pressure          | yes         |
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    <patchName>
    {
        type            prghTotalPressure;
        p0              uniform 0;
    }
    \endverbatim
 
See also
    Foam::fixedValueFvPatchScalarField
 
SourceFiles
    prghTotalPressureFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef prghTotalPressureFvPatchScalarField_H
#define prghTotalPressureFvPatchScalarField_H
 
#include "fixedValueFvPatchFields.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
         Class prghTotalPressureFvPatchScalarField Declaration
\*---------------------------------------------------------------------------*/
 
class prghTotalPressureFvPatchScalarField
:
    public fixedValueFvPatchScalarField
{
 
protected:
 
    // Protected data
 
        //- Name of the velocity field
        word UName_;
 
        //- Name of the flux transporting the field
        word phiName_;
 
        //- Name of phase-fraction field
        word rhoName_;
 
        //- Total pressure
        scalarField p0_;
 
 
public:
 
    //- Runtime type information
    TypeName("prghTotalPressure");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        prghTotalPressureFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        prghTotalPressureFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given
        //  prghTotalPressureFvPatchScalarField onto a new patch
        prghTotalPressureFvPatchScalarField
        (
            const prghTotalPressureFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy
        prghTotalPressureFvPatchScalarField
        (
            const prghTotalPressureFvPatchScalarField&
        );
 
        //- Construct and return a clone
        virtual tmp<fvPatchScalarField> clone() const
        {
            return tmp<fvPatchScalarField>
            (
                new prghTotalPressureFvPatchScalarField(*this)
            );
        }
 
        //- Construct as copy setting internal field reference
        prghTotalPressureFvPatchScalarField
        (
            const prghTotalPressureFvPatchScalarField&,
            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 prghTotalPressureFvPatchScalarField(*this, iF)
            );
        }
 
 
    // Member functions
 
        // Access
 
            //- Return the total pressure
            const scalarField& p0() const
            {
                return p0_;
            }
 
            //- Return reference to the total pressure to allow adjustment
            scalarField& p0()
            {
                return p0_;
            }
 
 
        // Mapping functions
 
            //- Map (and resize as needed) from self given a mapping object
            virtual void autoMap
            (
                const fvPatchFieldMapper&
            );
 
            //- Reverse map the given fvPatchField onto this fvPatchField
            virtual void rmap
            (
                const fvPatchScalarField&,
                const labelList&
            );
 
 
        // Evaluation functions
 
            //- Update the coefficients associated with the patch field
            virtual void updateCoeffs();
 
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //