alphaContactAngleFvPatchScalarField.H

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    Copyright (C) 2022 OpenCFD Ltd.
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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
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    You should have received a copy of the GNU General Public License
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Class
    Foam::alphaContactAngleFvPatchScalarField
 
Description
    Contact-angle boundary condition for multi-phase interface-capturing
    simulations.  Used in conjunction with multiphaseSystem.
 
SourceFiles
    alphaContactAngleFvPatchScalarField.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_multiphaseEuler_alphaContactAngleFvPatchScalarField_H
#define Foam_multiphaseEuler_alphaContactAngleFvPatchScalarField_H
 
#include "zeroGradientFvPatchFields.H"
#include "multiphaseSystem.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace multiphaseEuler
{
 
/*---------------------------------------------------------------------------*\
                  Class alphaContactAngleFvPatch Declaration
\*---------------------------------------------------------------------------*/
 
class alphaContactAngleFvPatchScalarField
:
    public zeroGradientFvPatchScalarField
{
public:
 
    class interfaceThetaProps
    {
        //- Equilibrium contact angle
        scalar theta0_;
 
        //- Dynamic contact angle velocity scale
        scalar uTheta_;
 
        //- Limiting advancing contact angle
        scalar thetaA_;
 
        //- Limiting receding contact angle
        scalar thetaR_;
 
 
    public:
 
        // Constructors
            interfaceThetaProps()
            {}
 
            interfaceThetaProps(Istream&);
 
 
        // Member functions
 
            //- Return the equilibrium contact angle theta0
            scalar theta0(bool matched=true) const
            {
                if (matched) return theta0_;
                else return 180.0 - theta0_;
            }
 
            //- Return the dynamic contact angle velocity scale
            scalar uTheta() const
            {
                return uTheta_;
            }
 
            //- Return the limiting advancing contact angle
            scalar thetaA(bool matched=true) const
            {
                if (matched) return thetaA_;
                else return 180.0 - thetaA_;
            }
 
            //- Return the limiting receding contact angle
            scalar thetaR(bool matched=true) const
            {
                if (matched) return thetaR_;
                else return 180.0 - thetaR_;
            }
 
 
        // IO functions
 
            friend Istream& operator>>(Istream&, interfaceThetaProps&);
            friend Ostream& operator<<(Ostream&, const interfaceThetaProps&);
    };
 
    typedef HashTable
    <
        interfaceThetaProps,
        multiphaseSystem::interfacePair,
        multiphaseSystem::interfacePair::symmHash
    > thetaPropsTable;
 
 
private:
 
    // Private data
 
        thetaPropsTable thetaProps_;
 
 
public:
 
    //- Runtime type information
    TypeName("multiphaseEuler::alphaContactAngle");
 
 
    // Constructors
 
        //- Construct from patch and internal field
        alphaContactAngleFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Construct from patch, internal field and dictionary
        alphaContactAngleFvPatchScalarField
        (
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const dictionary&
        );
 
        //- Construct by mapping given alphaContactAngleFvPatchScalarField
        //  onto a new patch
        alphaContactAngleFvPatchScalarField
        (
            const alphaContactAngleFvPatchScalarField&,
            const fvPatch&,
            const DimensionedField<scalar, volMesh>&,
            const fvPatchFieldMapper&
        );
 
        //- Construct as copy setting internal field reference
        alphaContactAngleFvPatchScalarField
        (
            const alphaContactAngleFvPatchScalarField&,
            const DimensionedField<scalar, volMesh>&
        );
 
        //- Return a clone
        virtual tmp<fvPatchField<scalar>> clone() const
        {
            return fvPatchField<scalar>::Clone(*this);
        }
 
        //- Clone with an internal field reference
        virtual tmp<fvPatchField<scalar>> clone
        (
            const DimensionedField<scalar, volMesh>& iF
        ) const
        {
            return fvPatchField<scalar>::Clone(*this, iF);
        }
 
 
    // Member functions
 
        //- Return the contact angle properties
        const thetaPropsTable& thetaProps() const
        {
            return thetaProps_;
        }
 
        //- Write
        virtual void write(Ostream&) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace multiphaseEuler
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //