OpenFOAM-dev / data /src /fvModels /interRegion /heatTransferCoefficientModels /variable /variable.H
| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2011-2025 OpenFOAM Foundation | |
| \\/ M anipulation | | |
| ------------------------------------------------------------------------------- | |
| 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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| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 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::fv::heatTransferCoefficientModels::variable | |
| Description | |
| Variable heat transfer model depending on local values. The Nusselt number | |
| is calculated as: | |
| \f[ | |
| Nu = a*Re^b*Pr^c | |
| \f] | |
| And the heat transfer coefficient is calculated as: | |
| \f[ | |
| htc = Nu*\kappa/L | |
| \f] | |
| Where: | |
| \vartable | |
| \kappa | Conductivity | |
| L | Length scale | |
| \endvartable | |
| Usage | |
| Example usage: | |
| \verbatim | |
| { | |
| heatTransferCoefficientModel variable; | |
| a 1; | |
| b 2; | |
| c 3; | |
| Pr 0.7; | |
| L 1e-3; | |
| } | |
| \endverbatim | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| namespace fv | |
| { | |
| namespace heatTransferCoefficientModels | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class variable Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class variable | |
| : | |
| public heatTransferCoefficientModel | |
| { | |
| // Private Data | |
| //- Name of neighbour velocity field; default = U | |
| word UName_; | |
| //- Model constant | |
| scalar a_; | |
| //- Model constant | |
| scalar b_; | |
| //- Model constant | |
| scalar c_; | |
| //- Length scale | |
| dimensionedScalar L_; | |
| //- Fluid Prandtl number | |
| dimensionedScalar Pr_; | |
| //- Heat transfer coefficient [W/m^2/K] | |
| volScalarField htc_; | |
| // Private Member Functions | |
| //- Non-virtual read | |
| void readCoeffs(const dictionary& dict); | |
| public: | |
| //- Runtime type information | |
| TypeName("variable"); | |
| // Constructors | |
| //- Construct from dictionary and mesh | |
| variable(const dictionary& dict, const fvMesh& mesh); | |
| //- Construct from dictionary and model | |
| variable(const dictionary& dict, const interRegionModel& model); | |
| //- Destructor | |
| virtual ~variable(); | |
| // Member Functions | |
| //- Get the heat transfer coefficient | |
| virtual tmp<volScalarField> htc() const | |
| { | |
| return htc_; | |
| } | |
| //- Correct the heat transfer coefficient | |
| virtual void correct(); | |
| //- Read dictionary | |
| virtual bool read(const dictionary& dict); | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace heatTransferCoefficientModels | |
| } // End namespace fv | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |