| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2011-2026 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::interfaceProperties | |
| Description | |
| Contains the interface properties. Surface tension, interface curvature, | |
| and functionality to correct alpha contact angle boundary conditions. | |
| SourceFiles | |
| interfaceProperties.C | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class interfaceProperties Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class interfaceProperties | |
| { | |
| // Private Data | |
| //- Keep a reference to the phaseProperties dictionary | |
| const dictionary& phasePropertiesDict_; | |
| //- Volume fraction of phase 1 | |
| volScalarField& alpha1_; | |
| //- Volume fraction of phase 2 | |
| volScalarField& alpha2_; | |
| //- Mixture velocity | |
| const volVectorField& U_; | |
| //- Surface tension | |
| autoPtr<surfaceTensionModel> sigmaPtr_; | |
| //- Stabilisation for normalisation of the interface normal | |
| const dimensionedScalar deltaN_; | |
| //- ... | |
| surfaceScalarField nHatf_; | |
| //- ... | |
| volScalarField K_; | |
| // Private Member Functions | |
| //- Correction for the boundary condition on the unit normal nHat on | |
| // walls to produce the correct contact dynamic angle | |
| // calculated from the component of U parallel to the wall | |
| void correctContactAngle | |
| ( | |
| surfaceVectorField::BoundaryField& nHat, | |
| const surfaceVectorField::BoundaryField& gradAlphaf | |
| ); | |
| //- Re-calculate the interface curvature | |
| void calculateK(); | |
| public: | |
| // Constructors | |
| //- Construct from dictionary, volume fraction fields and mixture | |
| // velocity | |
| interfaceProperties | |
| ( | |
| const IOdictionary& dict, | |
| volScalarField& alpha1, | |
| volScalarField& alpha2, | |
| const volVectorField& U | |
| ); | |
| //- Disallow default bitwise copy construction | |
| interfaceProperties(const interfaceProperties&) = delete; | |
| //- Destructor | |
| virtual ~interfaceProperties() | |
| {} | |
| // Member Functions | |
| inline const volVectorField& U() const | |
| { | |
| return U_; | |
| } | |
| const dimensionedScalar& deltaN() const | |
| { | |
| return deltaN_; | |
| } | |
| const surfaceScalarField& nHatf() const | |
| { | |
| return nHatf_; | |
| } | |
| tmp<volVectorField> n() const; | |
| tmp<volScalarField> sigmaK() const; | |
| tmp<surfaceScalarField> surfaceTensionForce() const; | |
| //- Indicator of the proximity of the interface | |
| // Field values are 1 near and 0 away from the interface. | |
| tmp<volScalarField> nearInterface() const; | |
| //- Correct the curvature | |
| void correct(); | |
| //- Read phaseProperties dictionary | |
| bool read(); | |
| // Member Operators | |
| //- Disallow default bitwise assignment | |
| void operator=(const interfaceProperties&) = delete; | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |