define member variables as const where appropriate

turn 'word' member variables into 'const word' if they are initialized
once (in the constructor) and never changed

src/lagrangian/cfdemParticle/subModels/chemistryModel/massTransferCoeff/massTransferCoeff.H

@@ -56,15 +56,15 @@ private:
 
     const fvMesh& mesh_;
 
-    word velFieldName_;
+    const word velFieldName_;
 
     const volVectorField& U_;
 
-    word voidfractionFieldName_;
+    const word voidfractionFieldName_;
 
     const volScalarField& voidfraction_;
 
-    word densityFieldName_;
+    const word densityFieldName_;
 
     const volScalarField& rho_;
 

src/lagrangian/cfdemParticle/subModels/chemistryModel/species/species.H

@@ -72,28 +72,28 @@ private:
 
     volScalarField changeOfGasMassField_;
 
-    word tempFieldName_;
+    const word tempFieldName_;
 
     const volScalarField& tempField_;              // ref to gas temperature field
 
-    word partTempName_;
+    const word partTempName_;
 
-    word densityFieldName_;
+    const word densityFieldName_;
 
     const volScalarField& rho_;
 
-    word partRhoName_;
+    const word partRhoName_;
 
-    word voidfractionFieldName_;
+    const word voidfractionFieldName_;
 
     const volScalarField& voidfraction_;
 
     // total mole field
-    word molarConcFieldName_;
+    const word molarConcFieldName_;
 
     const volScalarField& molarConc_;
 
-    word partMolarConcName_;
+    const word partMolarConcName_;
 
     label loopCounter_;
 

src/lagrangian/cfdemParticle/subModels/energyModel/heatTransferGranConduction/heatTransferGranConduction.H

@@ -54,7 +54,7 @@ protected:
 
     scalar totalHeatFlux_;
 
-    word QPartPartName_;
+    const word QPartPartName_;
 
     volScalarField QPartPart_;
 
@@ -64,15 +64,15 @@ protected:
 
     const volScalarField& partTempField_;
 
-    word prescribedVoidfractionFieldName_;
+    const word prescribedVoidfractionFieldName_;
 
     const volScalarField& prescribedVoidfraction_;
 
-    word voidfractionFieldName_;
+    const word voidfractionFieldName_;
 
     const volScalarField& voidfraction_;
 
-    word partHeatFluxName_;
+    const word partHeatFluxName_;
 
     scalarList typePartThermCond_;
 

src/lagrangian/cfdemParticle/subModels/energyModel/heatTransferGunn/heatTransferGunn.H

@@ -68,11 +68,11 @@ protected:
 
     scalar NusseltScalingFactor_;
 
-    word QPartFluidName_;
+    const word QPartFluidName_;
 
     volScalarField QPartFluid_;
 
-    word QPartFluidCoeffName_;
+    const word QPartFluidCoeffName_;
 
     volScalarField QPartFluidCoeff_;
 
@@ -90,27 +90,27 @@ protected:
 
     dimensionedScalar partTempAve_;
 
-    word tempFieldName_;
+    const word tempFieldName_;
 
     const volScalarField& tempField_;           // ref to temperature field
 
-    word voidfractionFieldName_;
+    const word voidfractionFieldName_;
 
     const volScalarField& voidfraction_;        // ref to voidfraction field
 
     scalar maxSource_;                          // max (limited) value of src field
 
-    word velFieldName_;
+    const word velFieldName_;
 
     const volVectorField& U_;
 
-    word densityFieldName_;
+    const word densityFieldName_;
 
     const volScalarField& rho_;
 
-    word partTempName_;
+    const word partTempName_;
 
-    word partHeatFluxName_;
+    const word partHeatFluxName_;
 
     const word partHeatFluxCoeffRegName_;
 

src/lagrangian/cfdemParticle/subModels/energyModel/heatTransferRanzMarshall/heatTransferRanzMarshall.H

@@ -67,11 +67,11 @@ protected:
 
     scalar NusseltScalingFactor_;
 
-    word QPartFluidName_;
+    const word QPartFluidName_;
 
     volScalarField QPartFluid_;
 
-    word QPartFluidCoeffName_;
+    const word QPartFluidCoeffName_;
 
     volScalarField QPartFluidCoeff_;
 
@@ -89,27 +89,27 @@ protected:
 
     dimensionedScalar partTempAve_;
 
-    word tempFieldName_;
+    const word tempFieldName_;
 
     const volScalarField& tempField_;            // ref to temperature field
 
-    word voidfractionFieldName_;
+    const word voidfractionFieldName_;
 
     const volScalarField& voidfraction_;    // ref to voidfraction field
 
     scalar maxSource_;                           // max (limited) value of src field
 
-    word velFieldName_;
+    const word velFieldName_;
 
     const volVectorField& U_;
 
-    word densityFieldName_;
+    const word densityFieldName_;
 
     const volScalarField& rho_;
 
-    word partTempName_;
+    const word partTempName_;
 
-    word partHeatFluxName_;
+    const word partHeatFluxName_;
 
     const word partHeatFluxCoeffRegName_;
 

src/lagrangian/cfdemParticle/subModels/forceModel/particleDeformation/particleDeformation.H

@@ -55,12 +55,12 @@ private:
 
     mutable bool initialExec_;
 
-    word refFieldName_;
+    const word refFieldName_;
 
     mutable autoPtr<volScalarField> refField_;
 
     // default deformation in region
-    word defaultDeformCellsName_;
+    const word defaultDeformCellsName_;
 
     autoPtr<cellSet> defaultDeformCells_;
 

src/lagrangian/cfdemParticle/subModels/forceModel/potentialRelaxation/potentialRelaxation.H

@@ -51,11 +51,11 @@ private:
 
     mutable OFstream recErrorFile_;
 
-    word voidfractionFieldName_;
+    const word voidfractionFieldName_;
 
     const volScalarField& voidfraction_;
 
-    word voidfractionRecFieldName_;
+    const word voidfractionRecFieldName_;
 
     const volScalarField& voidfractionRec_;
 

src/lagrangian/cfdemParticle/subModels/thermCondModel/ZehnerSchluenderThermCond/ZehnerSchluenderThermCond.H

@@ -54,11 +54,11 @@ private:
 
     dictionary propsDict_;
 
-    word partKsFieldName_;
+    const word partKsFieldName_;
 
     volScalarField& partKsField_;
 
-    word voidfractionFieldName_;
+    const word voidfractionFieldName_;
 
     const volScalarField& voidfraction_;