constantThermophysicalFunction.H

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License
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Class
    Foam::thermophysicalFunctions::constant

Description
    Constant property function.

Usage
    \constant
        Property    | Description
        value       | Constant property value
    \endconstant

    Example for the density of water between 280 and 350K
    \verbatim
    rho
    {
        type    constant;
        value   999.87;
    }
    \endverbatim

\*---------------------------------------------------------------------------*/

#ifndef constantThermophysicalFunction_H
#define constantThermophysicalFunction_H

#include "thermophysicalFunction.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{
namespace thermophysicalFunctions
{

/*---------------------------------------------------------------------------*\
                           Class constant Declaration
\*---------------------------------------------------------------------------*/

class constant
:
    public thermophysicalFunction
{
    // Private member data

        //- Constant value
        scalar value_;


public:

    //- Runtime type information
    TypeName("constant");


    // Constructors

        //- Construct from dictionary
        constant(const dictionary& dict);


    // Member Functions

        //- Evaluate the function and return the result
        scalar f(scalar p, scalar T) const;

        //- Write the function coefficients
        void write(Ostream& os) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace thermophysicalFunctions
} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //