Remove unused option SMOOTH_GEOMETRY (#2427)

* remove implicit smoothing remains

Common/include/CConfig.hpp

@@ -108,7 +108,6 @@ class CConfig {
   su2double Opt_RelaxFactor;              /*!< \brief Scale factor for the line search. */
   su2double Opt_LineSearch_Bound;         /*!< \brief Bounds for the line search. */
   su2double StartTime;
-  unsigned short SmoothNumGrid;           /*!< \brief Smooth the numerical grid. */
   bool ContinuousAdjoint,   /*!< \brief Flag to know if the code is solving an adjoint problem. */
   Viscous,                  /*!< \brief Flag to know if the code is solving a viscous problem. */
   EquivArea,                /*!< \brief Flag to know if the code is going to compute and plot the equivalent area. */
@@ -6338,12 +6337,6 @@ class CConfig {
    */
   bool GetAxisymmetric(void) const { return Axisymmetric; }
 
-  /*!
-   * \brief Get information about there is a smoothing of the grid coordinates.
-   * \return <code>TRUE</code> if there is smoothing of the grid coordinates; otherwise <code>FALSE</code>.
-   */
-  unsigned short GetSmoothNumGrid(void) const { return SmoothNumGrid; }
-
   /*!
    * \brief Subtract one to the index of the finest grid (full multigrid strategy).
    * \return Change the index of the finest grid.

Common/include/geometry/CGeometry.hpp

@@ -913,14 +913,6 @@ class CGeometry {
    */
   inline virtual void SetMultiGridWallTemperature(const CGeometry* fine_grid, unsigned short val_marker) {}
 
-  /*!
-   * \brief A virtual member.
-   * \param[in] val_nSmooth - Number of smoothing iterations.
-   * \param[in] val_smooth_coeff - Relaxation factor.
-   * \param[in] config - Definition of the particular problem.
-   */
-  inline virtual void SetCoord_Smoothing(unsigned short val_nSmooth, su2double val_smooth_coeff, CConfig* config) {}
-
   /*!
    * \brief A virtual member.
    * \param[in] fine_grid - Geometrical definition of the child grid (for multigrid).

Common/include/geometry/CPhysicalGeometry.hpp

@@ -545,14 +545,6 @@ class CPhysicalGeometry final : public CGeometry {
   void DetermineTimeLevelElements(CConfig* config, const vector<CFaceOfElement>& localFaces,
                                   map<unsigned long, CUnsignedShort2T>& mapExternalElemIDToTimeLevel);
 
-  /*!
-   * \brief Do an implicit smoothing of the grid coordinates.
-   * \param[in] val_nSmooth - Number of smoothing iterations.
-   * \param[in] val_smooth_coeff - Relaxation factor.
-   * \param[in] config - Definition of the particular problem.
-   */
-  void SetCoord_Smoothing(unsigned short val_nSmooth, su2double val_smooth_coeff, CConfig* config) override;
-
   /*!
    * \brief Compute 3 grid quality metrics: orthogonality angle, dual cell aspect ratio, and dual cell volume ratio.
    * \param[in] config - Definition of the particular problem.

Common/include/geometry/dual_grid/CPoint.hpp

@@ -771,14 +771,14 @@ class CPoint {
   }
 
   /*!
-   * \brief Get the value of the old coordinates for implicit smoothing.
+   * \brief Get the value of the old coordinates.
    * \param[in] iPoint - Index of the point.
    * \return Old coordinates at a point.
    */
   inline su2double* GetCoord_Old(unsigned long iPoint) { return Coord_Old[iPoint]; }
 
   /*!
-   * \brief Set the value of the vector <i>Coord_Old</i> for implicit smoothing.
+   * \brief Set the value of the vector <i>Coord_Old</i>.
    * \param[in] iPoint - Index of the point.
    * \param[in] coord_old - Value of the coordinates.
    */
@@ -791,27 +791,6 @@ class CPoint {
    */
   void SetCoord_Old();
 
-  /*!
-   * \brief Get the value of the summed coordinates for implicit smoothing.
-   * \param[in] iPoint - Index of the point.
-   * \return Sum of coordinates at a point.
-   */
-  inline su2double* GetCoord_Sum(unsigned long iPoint) { return Coord_Sum[iPoint]; }
-
-  /*!
-   * \brief Add the value of the coordinates to the <i>Coord_Sum</i> vector for implicit smoothing.
-   * \param[in] iPoint - Index of the point.
-   * \param[in] coord_sum - Value of the coordinates to add.
-   */
-  inline void AddCoord_Sum(unsigned long iPoint, const su2double* coord_sum) {
-    for (unsigned long iDim = 0; iDim < nDim; iDim++) Coord_Sum(iPoint, iDim) += coord_sum[iDim];
-  }
-
-  /*!
-   * \brief Initialize the vector <i>Coord_Sum</i>.
-   */
-  void SetCoord_SumZero();
-
   /*!
    * \brief Get the value of the grid velocity at the point.
    * \param[in] iPoint - Index of the point.

Common/src/CConfig.cpp

@@ -2264,9 +2264,6 @@ void CConfig::SetConfig_Options() {
   /* DESCRIPTION: Value to move motion origins (1 or 0) */
   addUShortListOption("MOVE_MOTION_ORIGIN", nMoveMotion_Origin, MoveMotion_Origin);
 
-  /* DESCRIPTION: Before each computation, implicitly smooth the nodal coordinates */
-  addUnsignedShortOption("SMOOTH_GEOMETRY", SmoothNumGrid, 0);
-
   /*!\par CONFIG_CATEGORY: Aeroelastic Simulation (Typical Section Model) \ingroup Config*/
   /*--- Options related to aeroelastic simulations using the Typical Section Model) ---*/
   /* DESCRIPTION: The flutter speed index (modifies the freestream condition) */
@@ -6877,8 +6874,6 @@ void CConfig::SetOutput(SU2_COMPONENT val_software, unsigned short val_izone) {
 
     cout << endl <<"--------------- Space Numerical Integration ( Zone "  << iZone << " ) ------------------" << endl;
 
-    if (SmoothNumGrid) cout << "There are some smoothing iterations on the grid coordinates." << endl;
-
     if ((Kind_Solver == MAIN_SOLVER::EULER)          || (Kind_Solver == MAIN_SOLVER::NAVIER_STOKES)          || (Kind_Solver == MAIN_SOLVER::RANS) ||
         (Kind_Solver == MAIN_SOLVER::INC_EULER)      || (Kind_Solver == MAIN_SOLVER::INC_NAVIER_STOKES)      || (Kind_Solver == MAIN_SOLVER::INC_RANS) ||
         (Kind_Solver == MAIN_SOLVER::NEMO_EULER)     || (Kind_Solver == MAIN_SOLVER::NEMO_NAVIER_STOKES)     ||

Common/src/geometry/CPhysicalGeometry.cpp

@@ -7417,70 +7417,6 @@ void CPhysicalGeometry::VisualizeControlVolume(const CConfig* config) const {
   }
 }
 
-void CPhysicalGeometry::SetCoord_Smoothing(unsigned short val_nSmooth, su2double val_smooth_coeff, CConfig* config) {
-  unsigned short iSmooth, nneigh, iMarker;
-  su2double *Coord_Old, *Coord_Sum, *Coord, *Coord_i, *Coord_j, Position_Plane = 0.0;
-  unsigned long iEdge, iPoint, jPoint, iVertex;
-  su2double eps = 1E-6;
-  bool NearField = false;
-
-  Coord = new su2double[nDim];
-
-  nodes->SetCoord_Old();
-
-  /*--- Jacobi iterations ---*/
-  for (iSmooth = 0; iSmooth < val_nSmooth; iSmooth++) {
-    nodes->SetCoord_SumZero();
-
-    /*--- Loop over Interior edges ---*/
-    for (iEdge = 0; iEdge < nEdge; iEdge++) {
-      iPoint = edges->GetNode(iEdge, 0);
-      Coord_i = nodes->GetCoord(iPoint);
-
-      jPoint = edges->GetNode(iEdge, 1);
-      Coord_j = nodes->GetCoord(jPoint);
-
-      /*--- Accumulate nearest neighbor Coord to Res_sum for each variable ---*/
-      nodes->AddCoord_Sum(iPoint, Coord_j);
-      nodes->AddCoord_Sum(jPoint, Coord_i);
-    }
-
-    /*--- Loop over all mesh points (Update Coords with averaged sum) ---*/
-    for (iPoint = 0; iPoint < nPoint; iPoint++) {
-      nneigh = nodes->GetnPoint(iPoint);
-      Coord_Sum = nodes->GetCoord_Sum(iPoint);
-      Coord_Old = nodes->GetCoord_Old(iPoint);
-
-      if (nDim == 2) {
-        Coord[0] = (Coord_Old[0] + val_smooth_coeff * Coord_Sum[0]) / (1.0 + val_smooth_coeff * su2double(nneigh));
-        Coord[1] = (Coord_Old[1] + val_smooth_coeff * Coord_Sum[1]) / (1.0 + val_smooth_coeff * su2double(nneigh));
-        if ((NearField) && ((Coord_Old[1] > Position_Plane - eps) && (Coord_Old[1] < Position_Plane + eps)))
-          Coord[1] = Coord_Old[1];
-      }
-
-      if (nDim == 3) {
-        Coord[0] = (Coord_Old[0] + val_smooth_coeff * Coord_Sum[0]) / (1.0 + val_smooth_coeff * su2double(nneigh));
-        Coord[1] = (Coord_Old[1] + val_smooth_coeff * Coord_Sum[1]) / (1.0 + val_smooth_coeff * su2double(nneigh));
-        Coord[2] = (Coord_Old[2] + val_smooth_coeff * Coord_Sum[2]) / (1.0 + val_smooth_coeff * su2double(nneigh));
-        if ((NearField) && ((Coord_Old[2] > Position_Plane - eps) && (Coord_Old[2] < Position_Plane + eps)))
-          Coord[2] = Coord_Old[2];
-      }
-
-      nodes->SetCoord(iPoint, Coord);
-    }
-
-    /*--- Copy boundary values ---*/
-    for (iMarker = 0; iMarker < nMarker; iMarker++)
-      for (iVertex = 0; iVertex < nVertex[iMarker]; iVertex++) {
-        iPoint = vertex[iMarker][iVertex]->GetNode();
-        Coord_Old = nodes->GetCoord_Old(iPoint);
-        nodes->SetCoord(iPoint, Coord_Old);
-      }
-  }
-
-  delete[] Coord;
-}
-
 bool CPhysicalGeometry::FindFace(unsigned long first_elem, unsigned long second_elem, unsigned short& face_first_elem,
                                  unsigned short& face_second_elem) {
   if (first_elem == second_elem) return false;

Common/src/geometry/dual_grid/CPoint.cpp

@@ -94,12 +94,6 @@ void CPoint::FullAllocation(unsigned short imesh, const CConfig* config) {
 
   Vertex.resize(npoint);
 
-  /*--- For smoothing the numerical grid coordinates ---*/
-  if (config->GetSmoothNumGrid()) {
-    Coord_Old.resize(npoint, nDim) = su2double(0.0);
-    Coord_Sum.resize(npoint, nDim) = su2double(0.0);
-  }
-
   /*--- Storage of grid velocities for dynamic meshes. ---*/
 
   if (config->GetDynamic_Grid()) {
@@ -190,5 +184,3 @@ void CPoint::SetCoord_Old() {
   assert(Coord_Old.size() == Coord.size());
   parallelCopy(Coord.size(), Coord.data(), Coord_Old.data());
 }
-
-void CPoint::SetCoord_SumZero() { parallelSet(Coord_Sum.size(), 0.0, Coord_Sum.data()); }