homogeneousLiquidPhaseSeparation.H

Go to the documentation of this file.

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Copyright (C) 2024-2025 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::homogeneousLiquidPhaseSeparation
 
Description
    Model for the homogeneous nucleation of a solid or liquid phase separating
    out of a liquid solution
 
Usage
    Example usage:
    \verbatim
    homogeneousLiquidPhaseSeparation
    {
        type            homogeneousLiquidPhaseSeparation;
        libs            ("libmultiphaseEulerFvModels.so");
 
        // Phases between which the transfer occurs. The first phase is the
        // solution, and the second is the precipitate.
        phases          (liquid sugar);
 
        // The specie that is condensing
        specie          C6H12O6;
 
        // Linearise the latent heat contribution into the energy equation?
        energySemiImplicit no;
 
        // Solubility given in mass of solute per mass of solvent
        solubility      constant 0.9;
 
        // Type of the nucleate: 'solid', 'liquid' or 'gas'.
        nucleate        solid;
    }
    \endverbatim
 
SourceFiles
    homogeneousLiquidPhaseSeparation.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef homogeneousLiquidPhaseSeparation_H
#define homogeneousLiquidPhaseSeparation_H
 
#include "phaseChange.H"
#include "nucleation.H"
#include "dispersedPhaseInterface.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace fv
{
 
/*---------------------------------------------------------------------------*\
              Class homogeneousLiquidPhaseSeparation Declaration
\*---------------------------------------------------------------------------*/
 
class homogeneousLiquidPhaseSeparation
:
    public phaseChange,
    public nucleation
{
public:
 
    // Public Type Definitions
 
        //- Enumeration for the nucleate types
        enum class nucleateType { solid, liquid, gas };
 
        //- Names of the moment types
        static const NamedEnum<nucleateType, 3> nucleateTypeNames_;
 
 
private:
 
    // Private Data
 
        //- Phase system
        const phaseSystem& fluid_;
 
        //- Diameter of nucleated clusters
        volScalarField::Internal d_;
 
        //- Phase change rate, per unit volume of the solution
        volScalarField::Internal mDotByAlphaSolution_;
 
        //- Solubility curve
        autoPtr<Function1<scalar>> solubilityCurve_;
 
        //- Nucleate type
        nucleateType nucleateType_;
 
 
    // Private Member Functions
 
        //- Non-virtual read
        void readCoeffs(const dictionary& dict);
 
        //- Evaluate the solubility curve at the given temperature to return
        //  the saturated mass fraction of solute
        tmp<volScalarField::Internal> YSat
        (
            const volScalarField::Internal& T
        ) const;
 
 
public:
 
    //- Runtime type information
    TypeName("homogeneousLiquidPhaseSeparation");
 
 
    // Constructors
 
        //- Construct from explicit source name and mesh
        homogeneousLiquidPhaseSeparation
        (
            const word& name,
            const word& modelType,
            const fvMesh& mesh,
            const dictionary& dict
        );
 
 
    // Member Functions
 
        // Sources
 
            //- Return the diameter of nuclei
            virtual tmp<DimensionedField<scalar, volMesh>> d() const;
 
            //- Return the number rate at which nuclei are generated
            virtual tmp<DimensionedField<scalar, volMesh>> nDot() const;
 
            //- Return the mass transfer rate
            virtual tmp<DimensionedField<scalar, volMesh>> mDot() const;
 
            //- Return the nucleation time scale
            virtual tmp<DimensionedField<scalar, volMesh>> tau() const;
 
            //- Use phaseChange's source functions
            using phaseChange::addSup;
 
            //- Override the compressible continuity equation to add
            //  linearisation w.r.t alpha
            void addSup
            (
                const volScalarField& alpha,
                const volScalarField& rho,
                fvMatrix<scalar>& eqn
            ) const;
 
 
        //- Correct the fvModel
        //  e.g. solve equations, update model, for film, Lagrangian etc.
        virtual void correct();
 
 
        // IO
 
            //- Read source dictionary
            virtual bool read(const dictionary& dict);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //