dispersedDragModel.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::dispersedDragModel
 
Description
    Model for drag between two phases where one phase can be considered
    dispersed in the other and the drag therefore characterised by a drag
    coefficient
 
SourceFiles
    dispersedDragModel.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef dispersedDragModel_H
#define dispersedDragModel_H
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "dragModel.H"
#include "dispersedPhaseInterface.H"
 
namespace Foam
{
 
class swarmCorrection;
 
namespace dragModels
{
 
/*---------------------------------------------------------------------------*\
                       Class dispersedDragModel Declaration
\*---------------------------------------------------------------------------*/
 
class dispersedDragModel
:
    public dragModel
{
protected:
 
    // Protected data
 
        //- Interface
        const dispersedPhaseInterface interface_;
 
        //- Swarm correction
        autoPtr<swarmCorrection> swarmCorrection_;
 
 
public:
 
    // Constructors
 
        // Construct from a dictionary and an interface
        dispersedDragModel
        (
            const dictionary& dict,
            const phaseInterface& interface,
            const bool registerObject
        );
 
 
    //- Destructor
    virtual ~dispersedDragModel();
 
 
    // Member Functions
 
        //- Drag coefficient
        virtual tmp<volScalarField> CdRe() const = 0;
 
        //- Return the phase-intensive drag coefficient Ki
        //  used in the momentum equations
        //    ddt(alpha1*rho1*U1) + ... = ... alphad*K*(U1-U2)
        //    ddt(alpha2*rho2*U2) + ... = ... alphad*K*(U2-U1)
        virtual tmp<volScalarField> Ki() const;
 
        //- Return the drag coefficient K
        //  used in the momentum equations
        //    ddt(alpha1*rho1*U1) + ... = ... K*(U1-U2)
        //    ddt(alpha2*rho2*U2) + ... = ... K*(U2-U1)
        virtual tmp<volScalarField> K() const;
 
        //- Return the drag coefficient Kf
        //  used in the face-momentum equations
        virtual tmp<surfaceScalarField> Kf() const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace dragModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //