| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 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::Lagrangian::pointInjection | |
| Description | |
| Point injection model. This injects particles continuously at a point with | |
| a given number rate. The point and the number rate are both Function1-s and | |
| can both vary with time. | |
| Note that this model only controls the number and position of injected | |
| Lagrangian particles. All physical properties are specified by | |
| corresponding source conditions. So the velocity/direction/angle/etc..., is | |
| controlled by the velocity source condition, the size distribution by the | |
| diameter source condition, and the flow rate by the number source | |
| condition. | |
| Usage | |
| \table | |
| Property | Description | Required? | Default | |
| point | The position at which to inject | yes | | |
| numberRate | The number of particles to inject per unit time | yes | | |
| \endtable | |
| Example specification: | |
| \verbatim | |
| <LagrangianModelName> | |
| { | |
| type pointInjection; | |
| point (1 2 3) [cm]; | |
| numberRate 10000; | |
| } | |
| \endverbatim | |
| See also | |
| Foam::Function1s | |
| SourceFiles | |
| pointInjection.C | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| namespace Lagrangian | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class pointInjection Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class pointInjection | |
| : | |
| public LagrangianInjection | |
| { | |
| private: | |
| // Private Data | |
| //- The point at which to inject | |
| autoPtr<Function1<point>> point_; | |
| //- The rate at which to inject | |
| autoPtr<Function1<scalar>> numberRate_; | |
| //- The number deferred to the next injection step | |
| mutable scalar numberDeferred_; | |
| //- A random number generator | |
| mutable restartableRandomGenerator rndGen_; | |
| //- The time index | |
| mutable label timeIndex_; | |
| //- Where is the injection? | |
| enum class injectionLocation | |
| { | |
| unset, | |
| fixedPointOnThisProcessor, | |
| fixedPointOnAnotherProcessor, | |
| multiplePoints | |
| } injectionLocation_; | |
| //- The coordinates of the point | |
| barycentric coordinates_; | |
| //- The cell containing the point | |
| label celli_; | |
| //- The face adjacent to the tet containing the point | |
| label facei_; | |
| //- The face-tri adjacent to the tet containing the point | |
| label faceTrii_; | |
| // Private Member Functions | |
| //- Non-virtual read | |
| void readCoeffs(const dictionary& modelDict); | |
| public: | |
| //- Runtime type information | |
| TypeName("pointInjection"); | |
| // Constructors | |
| //- Construct from components | |
| pointInjection | |
| ( | |
| const word& name, | |
| const LagrangianMesh& mesh, | |
| const dictionary& modelDict, | |
| const dictionary& stateDict | |
| ); | |
| // Member Functions | |
| //- Correct the LagrangianModel | |
| virtual void correct(); | |
| //- Create new elements in the Lagrangian mesh | |
| LagrangianSubMesh modify | |
| ( | |
| LagrangianMesh& mesh, | |
| const LagrangianSubMesh& | |
| ) const; | |
| // Mesh changes | |
| //- 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& modelDict); | |
| //- Write state | |
| virtual void writeState(Ostream& os) const; | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace Lagrangian | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |