ENH: exponential: new nucleate flux model

src/phaseSystemModels/reactingEuler/multiphaseSystem/Make/files

@@ -231,6 +231,7 @@ $(TDNBModels)/Schroeder/Schroeder.C
 nucleateFluxModels = $(wallBoilingSubModels)/nucleateFluxModels
 $(nucleateFluxModels)/nucleateFluxModel/nucleateFluxModel.C
 $(nucleateFluxModels)/Kutadeladze/Kutadeladze.C
+$(nucleateFluxModels)/exponential/exponential.C
 
 /* Turbulence */
 turbulence/multiphaseCompressibleTurbulenceModels.C

src/phaseSystemModels/reactingEuler/multiphaseSystem/derivedFvPatchFields/wallBoilingSubModels/nucleateFluxModels/exponential/exponential.C

@@ -0,0 +1,97 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2021 OpenCFD Ltd
+-------------------------------------------------------------------------------
+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 "exponential.H"
+#include "addToRunTimeSelectionTable.H"
+#include "uniformDimensionedFields.H"
+#include "phasePairKey.H"
+#include "phaseSystem.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace wallBoilingModels
+{
+namespace nucleateFluxModels
+{
+    defineTypeNameAndDebug(exponential, 0);
+    addToRunTimeSelectionTable
+    (
+        nucleateFluxModel,
+        exponential,
+        dictionary
+    );
+}
+}
+}
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::wallBoilingModels::nucleateFluxModels::exponential::exponential
+(
+    const dictionary& dict
+)
+:
+    nucleateFluxModel(),
+    a_(dict.getOrDefault<scalar>("a", 6309)),
+    b_(dict.getOrDefault<scalar>("b", 2.52))
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+Foam::tmp<Foam::scalarField>
+Foam::wallBoilingModels::nucleateFluxModels::exponential::qNucleate
+(
+    const phaseModel& liquid,
+    const phaseModel& vapor,
+    const label patchi,
+    const scalarField& Tl,
+    const scalarField& Tsatw,
+    const scalarField& L
+) const
+{
+    const fvPatchScalarField& Tw =
+        liquid.thermo().T().boundaryField()[patchi];
+
+    return a_*pow(max((Tw-Tsatw), scalar(0)), b_);
+}
+
+
+void Foam::wallBoilingModels::nucleateFluxModels::exponential::write
+(
+    Ostream& os
+) const
+{
+    nucleateFluxModel::write(os);
+    os.writeEntry("a", a_);
+    os.writeEntry("b", b_);
+}
+
+
+// ************************************************************************* //

src/phaseSystemModels/reactingEuler/multiphaseSystem/derivedFvPatchFields/wallBoilingSubModels/nucleateFluxModels/exponential/exponential.H

@@ -0,0 +1,158 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2021 OpenCFD Ltd
+-------------------------------------------------------------------------------
+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::wallBoilingModels::nucleateFluxModels::exponential
+
+Description
+    Nucleate flux sub-cooling correlation
+
+    References:
+    \verbatim
+        Frost W. & Dzakowic G. S. (1967)
+        An extension of the methods of predicting incipient
+        boiling on commercially finished surfaces.
+        ASME AIChE Heat Transfer Conf 67-HT-61, Seattle.
+
+        Shirai, Y., Tatsumoto, H., Shiotsu, M., Hata, K.,
+        Kobayashi, H., Naruo, Y., & Inatani, Y. (2010).
+        Boiling heat transfer from a horizontal flat
+        plate in a pool of liquid hydrogen.
+        Cryogenics, 50(6-7), 410-416.
+        DOI:10.1016/j.cryogenics.2010.04.001
+    \endverbatim
+
+Usage
+    Example of the model specification:
+    \verbatim
+    nucleateFluxModel
+    {
+        // Mandatory entries
+        type            exponential;
+
+        // Optional entries
+        a               <scalar>;
+        b               <scalar>;
+    }
+    \endverbatim
+
+    where the entries mean:
+    \table
+      Property   | Description                       | Type | Reqd | Deflt
+      type       | Type name: exponential            | word | yes  | -
+      a          | Pre-factor coefficient          | scalar | no   | 6309
+      b          | Exponent coefficient            | scalar | no   | 2.52
+    \endtable
+
+SourceFiles
+    exponential.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef exponential_H
+#define exponential_H
+
+#include "nucleateFluxModel.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace wallBoilingModels
+{
+namespace nucleateFluxModels
+{
+
+/*---------------------------------------------------------------------------*\
+                         Class exponential Declaration
+\*---------------------------------------------------------------------------*/
+
+class exponential
+:
+    public nucleateFluxModel
+{
+    // Private Data
+
+        //- Pre-factor coefficient
+        scalar a_;
+
+        //- Exponent coefficient
+        scalar b_;
+
+
+    // Private Member Functions
+
+        //- No copy construct
+        exponential(const exponential&) = delete;
+
+        //- No copy assignment
+        void operator=(const exponential&) = delete;
+
+
+public:
+
+    //- Runtime type information
+    TypeName("exponential");
+
+
+    // Constructors
+
+        //- Construct from a dictionary
+        exponential(const dictionary& dict);
+
+
+    //- Destructor
+    virtual ~exponential() = default;
+
+
+    // Member Functions
+
+        //- Calculate and return the nucleation-site density
+        virtual tmp<scalarField> qNucleate
+        (
+            const phaseModel& liquid,
+            const phaseModel& vapor,
+            const label patchi,
+            const scalarField& Tl,
+            const scalarField& Tsatw,
+            const scalarField& L
+        ) const;
+
+        //- Write
+        virtual void write(Ostream& os) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace nucleateFluxModels
+} // End namespace wallBoilingModels
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //