| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / 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. | |
| OpenFOAM is distributed in the hope that it will be useful, but WITHOUT | |
| 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::actuationDisk | |
| Description | |
| Actuation disk source | |
| Constant values for momentum source for actuation disk | |
| \f[ | |
| T = 2 \rho A (\hat{d}\dot U_{o})^2 a (1-a) \hat{d} | |
| \f] | |
| where: | |
| \vartable | |
| A | Disk area | |
| dHat | Unit disk direction | |
| U_o | Upstream velocity | |
| a | 1 - Cp/Ct | |
| Cp | Power coefficient | |
| Ct | Thrust coefficient | |
| \endvartable | |
| Usage | |
| Example usage: | |
| \verbatim | |
| actuationDisk1 | |
| { | |
| type actuationDisk; | |
| cellZone actuationDisk1; | |
| diskDir (-1 0 0); // Disk direction | |
| Cp 0.1; // Power coefficient | |
| Ct 0.5; // Thrust coefficient | |
| diskArea 5.0; // Disk area | |
| upstreamPoint (0 0 0); // Upstream point | |
| } | |
| \endverbatim | |
| SourceFiles | |
| actuationDisk.C | |
| actuationDiskTemplates.C | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| namespace fv | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class actuationDisk Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class actuationDisk | |
| : | |
| public fvModel | |
| { | |
| protected: | |
| // Protected Data | |
| //- The cellZone the fvConstraint applies to | |
| fvCellZone zone_; | |
| //- The name of the phase to which this fvModel applies | |
| word phaseName_; | |
| //- Name of the velocity field | |
| word UName_; | |
| //- Disk area normal | |
| vector diskDir_; | |
| //- Power coefficient | |
| scalar Cp_; | |
| //- Thrust coefficient | |
| scalar Ct_; | |
| //- Disk area | |
| scalar diskArea_; | |
| //- Upstream point sample | |
| point upstreamPoint_; | |
| //- Upstream cell ID | |
| label upstreamCellId_; | |
| private: | |
| // Private Member Functions | |
| //- Non-virtual read | |
| void readCoeffs(const dictionary& dict); | |
| //- Add resistance to the UEqn | |
| template<class AlphaFieldType, class RhoFieldType> | |
| inline void addActuationDiskAxialInertialResistance | |
| ( | |
| vectorField& Usource, | |
| const labelList& cells, | |
| const scalarField& V, | |
| const AlphaFieldType& alpha, | |
| const RhoFieldType& rho, | |
| const vectorField& U | |
| ) const; | |
| public: | |
| //- Runtime type information | |
| TypeName("actuationDisk"); | |
| // Constructors | |
| //- Construct from components | |
| actuationDisk | |
| ( | |
| const word& name, | |
| const word& modelType, | |
| const fvMesh& mesh, | |
| const dictionary& dict | |
| ); | |
| //- Disallow default bitwise copy construction | |
| actuationDisk(const actuationDisk&) = delete; | |
| //- Destructor | |
| virtual ~actuationDisk() | |
| {} | |
| // Member Functions | |
| // Checks | |
| //- Return the list of fields for which the fvModel adds source term | |
| // to the transport equation | |
| virtual wordList addSupFields() const; | |
| // Add explicit and implicit contributions | |
| //- Source term to momentum equation | |
| virtual void addSup | |
| ( | |
| const volVectorField& U, | |
| fvMatrix<vector>& eqn | |
| ) const; | |
| //- Source term to compressible momentum equation | |
| virtual void addSup | |
| ( | |
| const volScalarField& rho, | |
| const volVectorField& U, | |
| fvMatrix<vector>& eqn | |
| ) const; | |
| //- Explicit and implicit sources for phase equations | |
| virtual void addSup | |
| ( | |
| const volScalarField& alpha, | |
| const volScalarField& rho, | |
| const volVectorField& U, | |
| fvMatrix<vector>& eqn | |
| ) const; | |
| // Mesh changes | |
| //- Update for mesh motion | |
| virtual bool movePoints(); | |
| //- Update topology using the given map | |
| virtual void topoChange(const polyTopoChangeMap&); | |
| //- Update from another mesh using the given map | |
| virtual void mapMesh(const polyMeshMap&); | |
| //- Redistribute or update using the given distribution map | |
| virtual void distribute(const polyDistributionMap&); | |
| // IO | |
| //- Read dictionary | |
| virtual bool read(const dictionary& dict); | |
| // Member Operators | |
| //- Disallow default bitwise assignment | |
| void operator=(const actuationDisk&) = delete; | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace fv | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |