rhoReactingFoam, rhoReactingBuoyantFoam: Added LTS support

Select LTS via the ddtScheme:

    ddtSchemes
    {
        default         localEuler rDeltaT;
    }

applications/solvers/combustion/reactingFoam/rhoReactingBuoyantFoam/rhoReactingBuoyantFoam.C

@@ -37,6 +37,8 @@ Description
 #include "pimpleControl.H"
 #include "fvIOoptionList.H"
 #include "fixedFluxPressureFvPatchScalarField.H"
+#include "localEulerDdtScheme.H"
+#include "fvcSmooth.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -48,13 +50,18 @@ int main(int argc, char *argv[])
 
     pimpleControl pimple(mesh);
 
+    #include "createRDeltaT.H"
+    #include "initContinuityErrs.H"
     #include "createFields.H"
     #include "createMRF.H"
     #include "createFvOptions.H"
-    #include "initContinuityErrs.H"
-    #include "readTimeControls.H"
-    #include "compressibleCourantNo.H"
-    #include "setInitialDeltaT.H"
+
+    if (!LTS)
+    {
+        #include "readTimeControls.H"
+        #include "CourantNo.H"
+        #include "setInitialDeltaT.H"
+    }
 
     // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -63,10 +70,19 @@ int main(int argc, char *argv[])
     while (runTime.run())
     {
         #include "readTimeControls.H"
-        #include "compressibleCourantNo.H"
-        #include "setDeltaT.H"
+
+        if (LTS)
+        {
+            #include "setRDeltaT.H"
+        }
+        else
+        {
+            #include "compressibleCourantNo.H"
+            #include "setDeltaT.H"
+        }
 
         runTime++;
+
         Info<< "Time = " << runTime.timeName() << nl << endl;
 
         #include "rhoEqn.H"

applications/solvers/combustion/reactingFoam/rhoReactingFoam/rhoReactingFoam.C

@@ -36,6 +36,8 @@ Description
 #include "multivariateScheme.H"
 #include "pimpleControl.H"
 #include "fvIOoptionList.H"
+#include "localEulerDdtScheme.H"
+#include "fvcSmooth.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -47,14 +49,19 @@ int main(int argc, char *argv[])
 
     pimpleControl pimple(mesh);
 
+    #include "createRDeltaT.H"
+    #include "initContinuityErrs.H"
     #include "readGravitationalAcceleration.H"
     #include "createFields.H"
     #include "createMRF.H"
     #include "createFvOptions.H"
-    #include "initContinuityErrs.H"
-    #include "readTimeControls.H"
-    #include "compressibleCourantNo.H"
-    #include "setInitialDeltaT.H"
+
+    if (!LTS)
+    {
+        #include "readTimeControls.H"
+        #include "CourantNo.H"
+        #include "setInitialDeltaT.H"
+    }
 
     // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -63,10 +70,19 @@ int main(int argc, char *argv[])
     while (runTime.run())
     {
         #include "readTimeControls.H"
-        #include "compressibleCourantNo.H"
-        #include "setDeltaT.H"
+
+        if (LTS)
+        {
+            #include "setRDeltaT.H"
+        }
+        else
+        {
+            #include "compressibleCourantNo.H"
+            #include "setDeltaT.H"
+        }
 
         runTime++;
+
         Info<< "Time = " << runTime.timeName() << nl << endl;
 
         #include "rhoEqn.H"