turbulentIntensityKineticEnergyFvScalarFieldSource.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::turbulentIntensityKineticEnergyFvScalarFieldSource
 
Description
    This source condition provides a turbulent kinetic energy based on
    user-supplied turbulence intensity, defined as a fraction of the
    mean velocity:
 
        \f[
            k = 1.5 (I |U|)^2
        \f]
 
    where
 
    \vartable
        k       | kinetic energy values
        I       | turbulence intensity
        U       | velocity field
    \endvartable
 
    In the case of a sink, the current cell values are used instead.
 
Usage
    \table
        Property     | Description             | Required    | Default value
        intensity    | fraction of mean field [0-1] | yes    |
        U            | velocity field name     | no          | U
    \endtable
 
    Example of the boundary condition specification:
    \verbatim
    <sourceName>
    {
        type        turbulentIntensityKineticEnergyInlet;
        intensity   0.05;           // 5% turbulence
    }
    \endverbatim
 
SourceFiles
    turbulentIntensityKineticEnergyFvScalarFieldSource.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef turbulentIntensityKineticEnergyFvScalarFieldSource_H
#define turbulentIntensityKineticEnergyFvScalarFieldSource_H
 
#include "fvFieldSources.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
     Class turbulentIntensityKineticEnergyFvScalarFieldSource Declaration
\*---------------------------------------------------------------------------*/
 
class turbulentIntensityKineticEnergyFvScalarFieldSource
:
    public fvScalarFieldSource
{
private:
 
    // Private Data
 
        //- Turbulent intensity as fraction of mean velocity
        scalar intensity_;
 
        //- Name of the velocity field
        word UName_;
 
 
public:
 
    //- Runtime type information
    TypeName("turbulentIntensityKineticEnergy");
 
 
    // Constructors
 
        //- Construct from internal field and dictionary
        turbulentIntensityKineticEnergyFvScalarFieldSource
        (
            const DimensionedField<scalar, volMesh>&,
            const dictionary& dict
        );
 
        //- Copy constructor setting internal field reference
        turbulentIntensityKineticEnergyFvScalarFieldSource
        (
            const turbulentIntensityKineticEnergyFvScalarFieldSource&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct and return a clone setting internal field reference
        virtual autoPtr<fvScalarFieldSource> clone
        (
            const DimensionedField<scalar, volMesh>& iF
        ) const
        {
            return autoPtr<fvScalarFieldSource>
            (
                new turbulentIntensityKineticEnergyFvScalarFieldSource
                (
                    *this,
                    iF
                )
            );
        }
 
 
    //- Destructor
    virtual ~turbulentIntensityKineticEnergyFvScalarFieldSource();
 
 
    // Member Functions
 
        //- Return the source value
        virtual tmp<DimensionedField<scalar, volMesh>> sourceValue
        (
            const fvSource& model,
            const DimensionedField<scalar, volMesh>& source
        ) const;
 
        //- Return the source value
        virtual tmp<scalarField> sourceValue
        (
            const fvSource& model,
            const scalarField& source,
            const labelUList& cells
        ) const;
 
        //- Return the internal coefficient
        virtual tmp<DimensionedField<scalar, volMesh>> internalCoeff
        (
            const fvSource& model,
            const DimensionedField<scalar, volMesh>& source
        ) const;
 
        //- Return the internal coefficient
        virtual tmp<scalarField> internalCoeff
        (
            const fvSource& model,
            const scalarField& source,
            const labelUList& cells
        ) const;
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //