Changing initialization

Signed-off-by: jtneedels <jneedels@stanford.edu>

Author: jtneedels

SU2_CFD/include/solvers/CFVMFlowSolverBase.inl

@@ -2394,7 +2394,7 @@ void CFVMFlowSolverBase<V, FlowRegime>::Friction_Forces(const CGeometry* geometr
   unsigned short iMarker, iMarker_Monitoring, iDim, jDim;
   unsigned short T_INDEX = 0, TVE_INDEX = 0, VEL_INDEX = 0, RHOS_INDEX = 0;
   su2double Viscosity = 0.0, WallDist[3] = {0.0}, Area, TauNormal, dTn, dTven,
-            Density = 0.0, WallDistMod, FrictionVel,
+            Density = 0.0, GradTemperature, WallDistMod, FrictionVel,
             UnitNormal[3] = {0.0}, TauElem[3] = {0.0}, TauTangent[3] = {0.0}, Tau[3][3] = {{0.0}}, Cp,
             thermal_conductivity, MaxNorm = 8.0, Grad_Vel[3][3] = {{0.0}}, Grad_Temp[3] = {0.0}, AxiFactor;
   const su2double *Coord = nullptr, *Coord_Normal = nullptr, *Normal = nullptr;
@@ -2557,8 +2557,6 @@ void CFVMFlowSolverBase<V, FlowRegime>::Friction_Forces(const CGeometry* geometr
       /// TODO: Move these ifs to specialized functions.
       if (!nemo){
 
-        su2double GradTemperature;
-
         if (FlowRegime == ENUM_REGIME::COMPRESSIBLE) {
           GradTemperature = -GeometryToolbox::DotProduct(nDim, Grad_Temp, UnitNormal);