Quemada.H

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License
    This file is part of OpenFOAM.
 
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Class
    Foam::mixtureViscosityModels::Quemada
 
Description
     Quemada viscosity model for for colloidal dispersions.
 
     References:
     \verbatim
         Quemada, D. (1998).
         Rheological modelling of complex fluids. I.
         The concept of effective volume fraction revisited.
         The European Physical Journal-Applied Physics, 1(1), 119-127.
    \endverbatim
 
Usage
    Example usage:
    \verbatim
        viscosityModel  Quemada;
 
        rho         1996; // Dispersed phase density
 
        q           2;    // Exponent, defaults to 2
        muMax       1e-2; // Maximum viscosity (for numerical stability)
 
    \endverbatim
 
SourceFiles
    Quemada.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Quemada_H
#define Quemada_H
 
#include "mixtureViscosityModel.H"
#include "dimensionedScalar.H"
#include "volFieldsFwd.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace mixtureViscosityModels
{
 
/*---------------------------------------------------------------------------*\
                           Class Quemada Declaration
\*---------------------------------------------------------------------------*/
 
class Quemada
:
    public mixtureViscosityModel
{
    // Private data
 
        //- Exponent (defaults to 2)
        scalar q_;
 
        //- Maximum viscosity
        dimensionedScalar muMax_;
 
 
public:
 
    //- Runtime type information
    TypeName("Quemada");
 
 
    // Constructors
 
        //- Construct from mixture
        Quemada(const incompressibleDriftFluxMixture& mixture);
 
 
    //- Destructor
    virtual ~Quemada()
    {}
 
 
    // Member Functions
 
        //- Return the mixture viscosity
        //  given the viscosity of the continuous phase
        virtual tmp<volScalarField> mu
        (
            const volScalarField& muc,
            const volVectorField& U
        ) const;
 
        //- Read phaseProperties dictionary
        virtual bool read();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace mixtureViscosityModels
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //