driftFluxFoam::mixtureViscosityModels: Added the basic Quemada viscosity model for for colloidal dispersions

currently without strain-rate dependency.

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;

    alphaMax    0.6; // Maximum dispersed phase-fraction (packing fraction)
    q           2;   // Exponent, defaults to 2

    rho         1996;
    \endverbatim

applications/solvers/multiphase/driftFluxFoam/mixtureViscosityModels/BinghamPlastic/BinghamPlastic.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2022 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -79,7 +79,7 @@ public:
 
 
     //- Destructor
-    ~BinghamPlastic()
+    virtual ~BinghamPlastic()
     {}
 
 
@@ -87,14 +87,14 @@ public:
 
         //- Return the mixture viscosity
         //  given the viscosity of the continuous phase
-        tmp<volScalarField> mu
+        virtual tmp<volScalarField> mu
         (
             const volScalarField& muc,
             const volVectorField& U
         ) const;
 
         //- Read phaseProperties dictionary
-        bool read();
+        virtual bool read();
 };
 
 

applications/solvers/multiphase/driftFluxFoam/mixtureViscosityModels/Make/files

@@ -3,5 +3,6 @@ mixtureViscosityModel/mixtureViscosityModelNew.C
 plastic/plastic.C
 BinghamPlastic/BinghamPlastic.C
 slurry/slurry.C
+Quemada/Quemada.C
 
 LIB = $(FOAM_LIBBIN)/libdriftFluxTransportModels

applications/solvers/multiphase/driftFluxFoam/mixtureViscosityModels/Quemada/Quemada.C

@@ -0,0 +1,109 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2022 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/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "Quemada.H"
+#include "volFields.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace mixtureViscosityModels
+{
+    defineTypeNameAndDebug(Quemada, 0);
+
+    addToRunTimeSelectionTable
+    (
+        mixtureViscosityModel,
+        Quemada,
+        dictionary
+    );
+}
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::mixtureViscosityModels::Quemada::Quemada
+(
+    const fvMesh& mesh,
+    const word& group
+)
+:
+    mixtureViscosityModel(mesh, group),
+    alphaMax_
+    (
+        "alphaMax",
+        dimless,
+        optionalSubDict(typeName + "Coeffs").lookup("alphaMax")
+    ),
+    q_(optionalSubDict(typeName + "Coeffs").lookupOrDefault("q", scalar(2))),
+    alpha_
+    (
+        mesh.lookupObject<volScalarField>
+        (
+            IOobject::groupName
+            (
+                lookupOrDefault<word>("alpha", "alpha"),
+                group
+            )
+        )
+    )
+{}
+
+
+// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
+
+Foam::tmp<Foam::volScalarField>
+Foam::mixtureViscosityModels::Quemada::mu
+(
+    const volScalarField& muc,
+    const volVectorField& U
+) const
+{
+    return muc*pow(1.0 - alpha_/alphaMax_, -q_);
+}
+
+
+bool Foam::mixtureViscosityModels::Quemada::read()
+{
+    if (mixtureViscosityModel::read())
+    {
+        const dictionary& dict = optionalSubDict(typeName + "Coeffs");
+
+        dict.lookup("alphaMax") >> alphaMax_;
+        dict.lookup("q") >> q_;
+
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+// ************************************************************************* //

applications/solvers/multiphase/driftFluxFoam/mixtureViscosityModels/Quemada/Quemada.H

@@ -0,0 +1,129 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2022 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::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;
+
+    alphaMax    0.6; // Maximum dispersed phase-fraction (packing fraction)
+    q           2;   // Exponent, defaults to 2
+
+    rho         1996;
+    \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
+
+        //- Maximum dispersed phase-fraction (packing fraction)
+        dimensionedScalar alphaMax_;
+
+        //- Exponent (defaults to 2)
+        scalar q_;
+
+        //- Dispersed phase fraction
+        const volScalarField& alpha_;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("Quemada");
+
+
+    // Constructors
+
+        //- Construct from components
+        Quemada(const fvMesh& mesh, const word& group);
+
+
+    //- 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
+
+// ************************************************************************* //

applications/solvers/multiphase/driftFluxFoam/mixtureViscosityModels/plastic/plastic.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2022 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -90,7 +90,7 @@ public:
 
 
     //- Destructor
-    ~plastic()
+    virtual ~plastic()
     {}
 
 
@@ -98,14 +98,14 @@ public:
 
         //- Return the mixture viscosity
         //  given the viscosity of the continuous phase
-        tmp<volScalarField> mu
+        virtual tmp<volScalarField> mu
         (
             const volScalarField& muc,
             const volVectorField& U
         ) const;
 
         //- Read phaseProperties dictionary
-        bool read();
+        virtual bool read();
 };
 
 

applications/solvers/multiphase/driftFluxFoam/mixtureViscosityModels/slurry/slurry.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2022 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -85,7 +85,7 @@ public:
 
 
     //- Destructor
-    ~slurry()
+    virtual ~slurry()
     {}
 
 
@@ -93,14 +93,14 @@ public:
 
         //- Return the mixture viscosity
         //  given the viscosity of the continuous phase
-        tmp<volScalarField> mu
+        virtual tmp<volScalarField> mu
         (
             const volScalarField& muc,
             const volVectorField& U
         ) const;
 
         //- Read phaseProperties dictionary
-        bool read();
+        virtual bool read();
 };