reactingEulerFoam: heatTransferModel: Added constantNu model

This is a heat transfer model with a constant fixed value for the
Nusselt number. It requires a single "Nu" entry to be specified.

Patch contributed by Juho Peltola, VTT

applications/solvers/multiphase/reactingEulerFoam/interfacialModels/Make/files

@@ -33,6 +33,7 @@ liftModels/wallDampedLift/wallDampedLift.C
 
 heatTransferModels/heatTransferModel/heatTransferModel.C
 heatTransferModels/heatTransferModel/newHeatTransferModel.C
+heatTransferModels/constantNu/constantNuHeatTransfer.C
 heatTransferModels/RanzMarshall/RanzMarshall.C
 heatTransferModels/sphericalHeatTransfer/sphericalHeatTransfer.C
 

applications/solvers/multiphase/reactingEulerFoam/interfacialModels/heatTransferModels/constantNu/constantNuHeatTransfer.C

@@ -0,0 +1,83 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2019 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 "constantNuHeatTransfer.H"
+#include "phasePair.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace heatTransferModels
+{
+    defineTypeNameAndDebug(constantNuHeatTransfer, 0);
+    addToRunTimeSelectionTable
+    (
+        heatTransferModel,
+        constantNuHeatTransfer,
+        dictionary
+    );
+}
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::heatTransferModels::constantNuHeatTransfer::constantNuHeatTransfer
+(
+    const dictionary& dict,
+    const phasePair& pair
+)
+:
+    heatTransferModel(dict, pair),
+    Nu_("Nu", dimless, dict)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::heatTransferModels::constantNuHeatTransfer::~constantNuHeatTransfer()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+Foam::tmp<Foam::volScalarField>
+Foam::heatTransferModels::constantNuHeatTransfer::K
+(
+    const scalar residualAlpha
+) const
+{
+    return
+        6.0
+       *max(pair_.dispersed(), residualAlpha)
+       *pair_.continuous().kappa()
+       *Nu_
+       /sqr(pair_.dispersed().d());
+}
+
+
+// ************************************************************************* //

applications/solvers/multiphase/reactingEulerFoam/interfacialModels/heatTransferModels/constantNu/constantNuHeatTransfer.H

@@ -0,0 +1,100 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2019 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::heatTransferModels::constantNuHeatTransfer
+
+Description
+    Model which applies a user provided constant Nusselt number for interfacial
+    heat transfer.
+
+SourceFiles
+    constantNuHeatTransfer.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef constantNuHeatTransfer_H
+#define constantNuHeatTransfer_H
+
+#include "heatTransferModel.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+class phasePair;
+
+namespace heatTransferModels
+{
+
+/*---------------------------------------------------------------------------*\
+                    Class constantNuHeatTransfer Declaration
+\*---------------------------------------------------------------------------*/
+
+class constantNuHeatTransfer
+:
+    public heatTransferModel
+{
+    // Private data
+
+        //- Nusselt number
+        dimensionedScalar Nu_;
+
+public:
+
+    //- Runtime type information
+    TypeName("constantNu");
+
+
+    // Constructors
+
+        //- Construct from components
+        constantNuHeatTransfer
+        (
+            const dictionary& dict,
+            const phasePair& pair
+        );
+
+
+    //- Destructor
+    virtual ~constantNuHeatTransfer();
+
+
+    // Member Functions
+
+        //- The heat transfer function K used in the enthalpy equation
+        tmp<volScalarField> K(const scalar residualAlpha) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace heatTransferModels
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //