143 lines
4.0 KiB
C++
143 lines
4.0 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2017 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::saturationModels::function1
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Description
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Saturation vapour temperature in terms of
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the vapour pressure (in Pa). The saturation temperature in Kelvins is
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specified as a Foam::Function1 type, to enable use of, e.g. constant,
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polynomial, table values.
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Currently this class only provides \f$T_sat\f$, the inverse function to
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return the vapour pressure for a given temperature are not implemented.
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Examples:
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\verbatim
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type function1;
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function polynomial
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(
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(308.0422 0)
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(0.0015096 1)
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(-1.61589e-8 2)
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(1.114106e-13 3)
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(-4.52216e-19 4)
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(1.05192e-24 5)
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(-1.2953e-30 6)
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(6.5365e-37 7)
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)
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\endverbatim
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\verbatim
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type function1;
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function csvFile;
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functionCoeffs
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{
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nHeaderLine 1;
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refColumn 0;
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componentColumns (1);
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separator ",";
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mergeSeparators no;
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file "filename.csv";
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outOfBounds clamp;
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interpolationScheme linear;
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};
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\endverbatim
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SourceFiles
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function1.C
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\*---------------------------------------------------------------------------*/
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#ifndef saturationModels_function1_H
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#define saturationModels_function1_H
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#include "saturationModel.H"
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#include "Function1.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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namespace saturationModels
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{
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/*---------------------------------------------------------------------------*\
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Class function1 Declaration
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\*---------------------------------------------------------------------------*/
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class function1
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:
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public saturationModel
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{
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// Private data
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//- Saturation temperature as a function of pressure
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autoPtr<Function1<scalar>> function_;
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public:
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//- Runtime type information
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TypeName("function1");
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// Constructors
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//- Construct from a dictionary
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function1(const dictionary& dict);
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//- Destructor
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virtual ~function1();
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// Member Functions
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//- Saturation pressure
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virtual tmp<volScalarField> pSat(const volScalarField& T) const;
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//- Saturation pressure derivative w.r.t. temperature
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virtual tmp<volScalarField> pSatPrime(const volScalarField& T) const;
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//- Natural log of the saturation pressure
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virtual tmp<volScalarField> lnPSat(const volScalarField& T) const;
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//- Saturation temperature
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virtual tmp<volScalarField> Tsat(const volScalarField& p) const;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace saturationModels
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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