raise error for frozen mixture option with mpp

Author: CatarinaGarbacz

Common/src/CConfig.cpp

@@ -3561,6 +3561,10 @@ void CConfig::SetPostprocessing(unsigned short val_software, unsigned short val_
       SU2_MPI::Error("If you're running an argon mixture, set MONOATOMIC= YES in the .cfg file!", CURRENT_FUNCTION);
   }
 
+  if (GetKind_FluidModel() == MUTATIONPP && GetFrozen() == true){
+      SU2_MPI::Error("The option of FROZEN_MIXTURE is not yet working the Mutation++ support.", CURRENT_FUNCTION);
+  }
+
   if(GetBoolTurbomachinery()){
     nBlades = new su2double[nZone];
     FreeStreamTurboNormal= new su2double[3];

SU2_CFD/src/fluid/CMutationTCLib.cpp

@@ -32,7 +32,7 @@
 CMutationTCLib::CMutationTCLib(const CConfig* config, unsigned short val_nDim): CNEMOGas(config, val_nDim){
 
   Mutation::MixtureOptions opt(gas_model);
-  string transport_model, state_model;
+  string transport_model;
 
   /* Allocating memory*/
   Cv_ks.resize(nEnergyEq*nSpecies,0.0);
@@ -42,19 +42,13 @@ CMutationTCLib::CMutationTCLib(const CConfig* config, unsigned short val_nDim):
 
   /*--- Set up inputs to define type of mixture in the Mutation++ library ---*/
 
-  /*--- Define thermochemical nonequilibrium model ---*/
-  if(!frozen)
-    state_model = "ChemNonEqTTv";
-  else 
-    state_model = "NonEqTTv";
-
   /*--- Define transport model ---*/
   if(Kind_TransCoeffModel == WILKE)
     transport_model = "Wilke";
   else if (Kind_TransCoeffModel == GUPTAYOS)
     transport_model = "Gupta-Yos";
 
-  opt.setStateModel(state_model);
+  opt.setStateModel("ChemNonEqTTv");
   opt.setViscosityAlgorithm(transport_model);
   opt.setThermalConductivityAlgorithm(transport_model);