ENH: New vibro-acoustic model suite

- New solver: `acousticFoam`
  - New base finite-area region class: `regionFaModel`
  - New base shell model classes:
    - `vibrationShellModel`
    - `thermalShellModel`
  - New shell models:
    - A vibration-shell model: `KirchhoffShell`
    - A thermal-shell model: `thermalShell`
  - New finite-area/finite-volume boundary conditions:
    - `clampedPlate`
    - `timeVaryingFixedValue`
    - `acousticWaveTransmissive`
  - New base classes for `fvOption` of finite-area methods: `faOption`
  - New `faOption`s:
    - `contactHeatFluxSource`
    - `externalFileSource`
    - `externalHeatFluxSource`
    - `jouleHeatingSource`
  - New tutorial: `compressible/acousticFoam/obliqueAirJet`

Signed-off-by: Kutalmis Bercin <kutalmis.bercin@esi-group.com>

src/regionFaModels/thermalShellModel/thermalShellModel.C

@@ -0,0 +1,121 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2019-2020 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 "thermalShellModel.H"
+#include "faMesh.H"
+#include "fvMesh.H"
+#include "fvPatchFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace regionModels
+{
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+defineTypeNameAndDebug(thermalShellModel, 0);
+
+defineRunTimeSelectionTable(thermalShellModel, dictionary);
+
+// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
+
+bool thermalShellModel::read(const dictionary& dict)
+{
+    if (regionFaModel::read(dict))
+    {
+        return true;
+    }
+
+    return false;
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+thermalShellModel::thermalShellModel
+(
+    const word& modelType,
+    const fvPatch& p,
+    const dictionary& dict
+)
+:
+    regionFaModel(p, "thermalShell", modelType, dict, true),
+    TName_(dict.get<word>("T")),
+    Tp_(p.boundaryMesh().mesh().lookupObject<volScalarField>(TName_)),
+    T_
+    (
+        IOobject
+        (
+            "Ts_" + regionName_,
+            p.boundaryMesh().mesh().time().timeName(),
+            p.boundaryMesh().mesh(),
+            IOobject::MUST_READ,
+            IOobject::AUTO_WRITE
+        ),
+        regionMesh()
+    ),
+    faOptions_(Foam::fa::options::New(p))
+{
+    if (!faOptions_.optionList::size())
+    {
+        Info << "No finite area options present" << endl;
+    }
+}
+
+
+// * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
+
+void thermalShellModel::preEvolveRegion()
+{}
+
+
+const Foam::volScalarField& thermalShellModel::Tp() const
+{
+    return Tp_;
+}
+
+
+const Foam::areaScalarField& thermalShellModel::T() const
+{
+    return T_;
+}
+
+
+Foam::fa::options& thermalShellModel::faOptions()
+{
+     return faOptions_;
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace regionModels
+} // End namespace Foam
+
+// ************************************************************************* //