Handle temperature from the heat_solver and use in calculating stress and stiffness

Author: Vaish-W

SU2_CFD/include/solvers/CFEASolver.hpp

@@ -28,7 +28,6 @@
 #pragma once
 
 #include "CFEASolverBase.hpp"
-#include "CHeatSolver.hpp"
 
 /*!
  * \class CFEASolver

SU2_CFD/src/solvers/CFEASolver.cpp

@@ -694,8 +694,8 @@ void CFEASolver::Compute_StiffMatrix(CGeometry *geometry, CNumerics **numerics,
             element->SetCurr_Coord(iNode, iDim, val_Sol);
           }  
           if (heat_solver) {
-                        auto nodal_temperatures = dynamic_cast<CSolver *>(heat_solver)->GetNodalTemperature();
-                        element->SetTemperature(iNode, nodal_temperatures[indexNode[iNode]]);
+                      const su2double temperature = heat_solver->GetNodes()->GetSolution(indexNode[iNode], 0);
+                      element->SetTemperature(iNode, temperature);
           }
         }
 
@@ -804,6 +804,14 @@ void CFEASolver::Compute_StiffMatrix_NodalStressRes(CGeometry *geometry, CNumeri
               de_elem->SetRef_Coord(iNode, iDim, val_Coord);
             }
           }
+          if (heat_solver) {
+            const su2double temperature = heat_solver->GetNodes()->GetSolution(indexNode[iNode], 0);
+            fea_elem->SetTemperature(iNode, temperature);
+
+            if (de_effects) {
+              de_elem->SetTemperature(iNode, temperature);
+            }
+          }
         }
 
         /*--- In topology mode determine the penalty to apply to the stiffness. ---*/
@@ -1102,6 +1110,10 @@ void CFEASolver::Compute_NodalStressRes(CGeometry *geometry, CNumerics **numeric
             element->SetCurr_Coord(iNode, iDim, val_Sol);
             element->SetRef_Coord(iNode, iDim, val_Coord);
           }
+          if (heat_solver) {
+            const su2double temperature = heat_solver->GetNodes()->GetSolution(indexNode[iNode], 0);
+            element->SetTemperature(iNode, temperature);
+          }
         }
 
         /*--- In topology mode determine the penalty to apply to the stiffness ---*/
@@ -1218,6 +1230,10 @@ void CFEASolver::Compute_NodalStress(CGeometry *geometry, CNumerics **numerics,
             element->SetCurr_Coord(iNode, iDim, val_Sol);
             element->SetRef_Coord(iNode, iDim, val_Coord);
           }
+          if (heat_solver) {
+            const su2double temperature = heat_solver->GetNodes()->GetSolution(indexNode[iNode], 0);
+            element->SetTemperature(iNode, temperature);
+          }
         }
 
         /*--- In topology mode determine the penalty to apply to the stiffness ---*/