1 files changed, 25 insertions, 1 deletions
diff --git a/src/refinement/grid2D.h b/src/refinement/grid2D.h
index 9a20544..f58a4ea 100644
--- a/src/refinement/grid2D.h
+++ b/src/refinement/grid2D.h
@@ -43,6 +43,29 @@ template <typename T, template<typename> class DESCRIPTOR> class FineCoupler2D;
 template <typename T, template<typename> class DESCRIPTOR> class CoarseCoupler2D;
 template <typename T, template<typename> class DESCRIPTOR> class RefiningGrid2D;
 
+template <typename T, typename Identificator>
+class NamedType {
+private:
+  T _value;
+
+public:
+  explicit NamedType(const T& value):
+    _value(value) {}
+  explicit NamedType(T&& value):
+    _value(std::move(value)) {}
+
+  operator T() const
+  {
+    return _value;
+  }
+};
+
+template <typename T>
+using RelaxationTime = NamedType<T,struct NamedRelaxationTime>;
+
+template <typename T>
+using LatticeVelocity = NamedType<T,struct NamedLatticeVelocity>;
+
 template <typename T, template<typename> class DESCRIPTOR>
 class Grid2D {
 protected:
@@ -60,7 +83,8 @@ protected:
   std::vector<std::unique_ptr<CoarseCoupler2D<T,DESCRIPTOR>>> _coarseCouplers;
 
 public:
-  Grid2D(FunctorPtr<IndicatorF2D<T>>&& domainF, int resolution, T tau, int re);
+  Grid2D(FunctorPtr<IndicatorF2D<T>>&& domainF, int resolution, RelaxationTime<T> tau, int re);
+  Grid2D(FunctorPtr<IndicatorF2D<T>>&& domainF, int resolution, LatticeVelocity<T> uMax, int re);
 
   UnitConverter<T,DESCRIPTOR>& getConverter();
   CuboidGeometry2D<T>& getCuboidGeometry();