NoFlux class for elliptic problems.

dune/fem-dg/operator/fluxes/Makefile.am

 fluxesdir = $(includedir)/dune/fem-dg/operator/fluxes
 fluxes_HEADERS = averageflux.hh  diffusionflux.hh  ldgflux.hh \
 mhd_fluxes.hh  rotator.hh dgprimalfluxes.hh  eulerfluxes.hh  \
-mhd_eqns.hh  mhdfluxes.hh  mhd_eqns.cc  mhd_fluxes.cc
+mhd_eqns.hh  mhdfluxes.hh  mhd_eqns.cc  mhd_fluxes.cc noflux.hh
 
 include $(top_srcdir)/am/global-rules

dune/fem-dg/operator/fluxes/noflux.hh

+#ifndef DUNE_FEMDG_NOFLUX_HH
+#define DUNE_FEMDG_NOFLUX_HH
+
+#include <string>
+
+namespace Dune 
+{
+
+template <class ModelType>
+class NoFlux {
+public:
+  typedef ModelType Model;
+  typedef typename Model::Traits Traits;
+  enum { dimRange = Model::dimRange };
+  typedef typename Model :: DomainType DomainType;
+  typedef typename Model :: RangeType RangeType;
+  typedef typename Model :: FluxRangeType FluxRangeType;
+  typedef typename Model :: FaceDomainType  FaceDomainType;
+  typedef typename Model :: EntityType  EntityType;
+  typedef typename Model :: IntersectionType  IntersectionType;
+public:
+  /**
+   * @brief constructor
+   */
+  NoFlux(const Model& mod) : model_(mod) {}
+
+  static std::string name () { return "UpwindFlux"; }
+
+  const Model& model() const {return model_;}
+
+  /**
+   * @brief evaluates the flux \f$g(u,v)\f$
+   *
+   * @return maximum wavespeed * normal
+   */
+  template <class QuadratureImp>
+  inline double numericalFlux( const IntersectionType& it,
+                               const EntityType& inside,
+                               const EntityType& outside,
+                               const double time,
+                               const QuadratureImp& faceQuadInner,
+                               const QuadratureImp& faceQuadOuter,
+                               const int quadPoint,
+                               const RangeType& uLeft,
+                               const RangeType& uRight,
+                               RangeType& gLeft,
+                               RangeType& gRight ) const
+  {
+    gLeft  = 0;
+    gRight = 0;
+    return 0;
+  }
+protected:
+  const Model& model_;
+};
+
+}
+#endif