[rans][boundarytypes] Introduce setWall boundary designation for the rans models

dumux/freeflow/rans/boundarytypes.hh

+// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+// vi: set et ts=4 sw=4 sts=4:
+/*****************************************************************************
+ *   See the file COPYING for full copying permissions.                      *
+ *                                                                           *
+ *   This program 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.                                     *
+ *                                                                           *
+ *   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.   *
+ *****************************************************************************/
+/*!
+ * \file
+ * \ingroup RANSModel
+ * \copydoc Dumux::RANSBoundaryTypes
+ */
+#ifndef FREEFLOW_RANS_BOUNDARY_TYPES_HH
+#define FREEFLOW_RANS_BOUNDARY_TYPES_HH
+
+#include <dumux/common/typetraits/typetraits.hh>
+#include <dumux/freeflow/navierstokes/boundarytypes.hh>
+
+namespace Dumux {
+
+/*!
+ * \ingroup RANSModel
+ * \brief Class to specify the type of a boundary condition for the RANS extension to the Navier-Stokes model.
+ */
+template <class ModelTraits, int numEq>
+class RANSBoundaryTypes : public NavierStokesBoundaryTypes<numEq>
+{
+    using ParentType = NavierStokesBoundaryTypes<numEq>;
+    static constexpr auto dimWorld = ModelTraits::dim();
+    using Indices = typename ModelTraits::Indices;
+    static_assert(dimWorld > 1, "Wall conditions cannot be set for 1D domains.");
+public:
+    RANSBoundaryTypes()
+    {
+        for (int eqIdx=0; eqIdx < numEq; ++eqIdx)
+            resetEq(eqIdx);
+    }
+
+    void setWall()
+    {
+        isWall_ = true;
+        for (int eqIdx=0; eqIdx < numEq; ++eqIdx)
+        {
+            if constexpr (dimWorld == 3)
+            {
+                if ((eqIdx == Indices::velocityXIdx)
+                 || (eqIdx == Indices::velocityYIdx)
+                 || (eqIdx == Indices::velocityZIdx))
+                    BoundaryTypes<numEq>::boundaryInfo_[eqIdx].isDirichlet = true;
+            }
+            else if constexpr (dimWorld == 2)
+            {
+                if ((eqIdx == Indices::velocityXIdx)
+                 || (eqIdx == Indices::velocityYIdx))
+                    BoundaryTypes<numEq>::boundaryInfo_[eqIdx].isDirichlet = true;
+            }
+            else
+                DUNE_THROW(Dune::NotImplemented, "1D Turbulence models are not supported");
+
+            if constexpr (numTurbulenceEq(ModelTraits::turbulenceModel()) == 1)
+            {
+                if (eqIdx == Indices::viscosityTildeIdx)
+                    BoundaryTypes<numEq>::boundaryInfo_[eqIdx].isDirichlet = true;
+            }
+            else if constexpr (numTurbulenceEq(ModelTraits::turbulenceModel()) == 2)
+            {
+                if (eqIdx == Indices::turbulentKineticEnergyEqIdx || eqIdx == Indices::dissipationEqIdx)
+                    BoundaryTypes<numEq>::boundaryInfo_[eqIdx].isDirichlet = true;
+            }
+        }
+    }
+
+    /*!
+     * \brief Returns true if some equation is used to specify a
+     *        Wall boundary condition.
+     */
+    bool hasWall() const
+    { return isWall_; }
+
+    /*!
+     * \brief Reset the boundary types for one equation.
+     */
+    void resetEq(const int eqIdx)
+    {
+        ParentType::resetEq(eqIdx);
+        isWall_ = false;
+    }
+
+protected:
+    bool isWall_;
+};
+
+} // end namespace Dumux
+
+#endif