multiphaseEuler::SolidThermalPhaseModel: New thermal phase model for solid phases

which provides the energy equation specific for stationary solid phases.

Author: Henry Weller

applications/modules/multiphaseEuler/multiphaseEuler/thermophysicalPredictor.C

@@ -85,15 +85,12 @@ void Foam::solvers::multiphaseEuler::energyPredictor()
 
         const volScalarField& alpha = phase;
         const volScalarField& rho = phase.rho();
-        const tmp<volVectorField> tU(phase.U());
-        const volVectorField& U(tU());
 
         fvScalarMatrix EEqn
         (
             phase.heEqn()
          ==
            *heatTransfer[phase.name()]
-          + alpha*rho*(U&buoyancy.g)
           + fvModels().source(alpha, rho, phase.thermo().he())
         );
 

applications/modules/multiphaseEuler/phaseSystems/phaseModel/AnisothermalPhaseModel/AnisothermalPhaseModel.C

@@ -71,7 +71,8 @@ Foam::AnisothermalPhaseModel<BasePhaseModel>::AnisothermalPhaseModel
     const label index
 )
 :
-    BasePhaseModel(fluid, phaseName, referencePhase, index)
+    BasePhaseModel(fluid, phaseName, referencePhase, index),
+    g_(fluid.mesh().lookupObject<uniformDimensionedVectorField>("g"))
 {}
 
 
@@ -132,7 +133,8 @@ Foam::AnisothermalPhaseModel<BasePhaseModel>::heEqn()
 
       + this->divq(he)
      ==
-        alpha*this->Qdot()
+        alpha*rho*(U&g_)
+      + alpha*this->Qdot()
     );
 
     // Add the appropriate pressure-work term

applications/modules/multiphaseEuler/phaseSystems/phaseModel/AnisothermalPhaseModel/AnisothermalPhaseModel.H

@@ -37,6 +37,7 @@ SourceFiles
 #define AnisothermalPhaseModel_H
 
 #include "phaseModel.H"
+#include "uniformDimensionedFields.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -52,6 +53,12 @@ class AnisothermalPhaseModel
 :
     public BasePhaseModel
 {
+    // Private Member Data
+
+        //- Gravitational acceleration
+        const uniformDimensionedVectorField& g_;
+
+
     // Private Member Functions
 
         //- Optionally filter the pressure work term as the phase-fraction -> 0

applications/modules/multiphaseEuler/phaseSystems/phaseModel/SolidThermalPhaseModel/SolidThermalPhaseModel.C

@@ -0,0 +1,91 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2023 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 "SolidThermalPhaseModel.H"
+#include "fvmDdt.H"
+#include "fvmSup.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+template<class BasePhaseModel>
+Foam::SolidThermalPhaseModel<BasePhaseModel>::SolidThermalPhaseModel
+(
+    const phaseSystem& fluid,
+    const word& phaseName,
+    const bool referencePhase,
+    const label index
+)
+:
+    BasePhaseModel(fluid, phaseName, referencePhase, index)
+{}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+template<class BasePhaseModel>
+Foam::SolidThermalPhaseModel<BasePhaseModel>::~SolidThermalPhaseModel()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+template<class BasePhaseModel>
+void Foam::SolidThermalPhaseModel<BasePhaseModel>::correctThermo()
+{
+    BasePhaseModel::correctThermo();
+
+    this->thermo_->correct();
+}
+
+
+template<class BasePhaseModel>
+bool Foam::SolidThermalPhaseModel<BasePhaseModel>::isothermal() const
+{
+    return false;
+}
+
+
+template<class BasePhaseModel>
+Foam::tmp<Foam::fvScalarMatrix>
+Foam::SolidThermalPhaseModel<BasePhaseModel>::heEqn()
+{
+    const volScalarField& alpha = *this;
+    const volScalarField& rho = this->rho();
+
+    volScalarField& he = this->thermo_->he();
+
+    tmp<fvScalarMatrix> tEEqn
+    (
+        fvm::ddt(alpha, rho, he)
+      + this->divq(he)
+     ==
+        alpha*this->Qdot()
+    );
+
+    return tEEqn;
+}
+
+
+// ************************************************************************* //

applications/modules/multiphaseEuler/phaseSystems/phaseModel/SolidThermalPhaseModel/SolidThermalPhaseModel.H

@@ -0,0 +1,101 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2023 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::SolidThermalPhaseModel
+
+Description
+    Class which represents a solid stationary phase for which the temperature
+    (strictly energy) varies. Returns the energy equation and corrects the
+    thermodynamic model.
+
+SourceFiles
+    SolidThermalPhaseModel.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef SolidThermalPhaseModel_H
+#define SolidThermalPhaseModel_H
+
+#include "phaseModel.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                   Class SolidThermalPhaseModel Declaration
+\*---------------------------------------------------------------------------*/
+
+template<class BasePhaseModel>
+class SolidThermalPhaseModel
+:
+    public BasePhaseModel
+{
+
+public:
+
+    // Constructors
+
+        SolidThermalPhaseModel
+        (
+            const phaseSystem& fluid,
+            const word& phaseName,
+            const bool referencePhase,
+            const label index
+        );
+
+
+    //- Destructor
+    virtual ~SolidThermalPhaseModel();
+
+
+    // Member Functions
+
+        //- Correct the thermodynamics
+        virtual void correctThermo();
+
+        //- Return whether the phase is isothermal
+        virtual bool isothermal() const;
+
+        //- Return the enthalpy equation
+        virtual tmp<fvScalarMatrix> heEqn();
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#ifdef NoRepository
+    #include "SolidThermalPhaseModel.C"
+#endif
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //

applications/modules/multiphaseEuler/phaseSystems/phaseModel/phaseModel/phaseModels.C

@@ -34,6 +34,7 @@ License
 #include "ThermoPhaseModel.H"
 #include "IsothermalPhaseModel.H"
 #include "AnisothermalPhaseModel.H"
+#include "SolidThermalPhaseModel.H"
 #include "PurePhaseModel.H"
 #include "MulticomponentPhaseModel.H"
 #include "InertPhaseModel.H"
@@ -74,7 +75,7 @@ namespace Foam
     );
 
     typedef
-        AnisothermalPhaseModel
+        SolidThermalPhaseModel
         <
             PurePhaseModel
             <