ENH: Tutorial updates

tutorials/compressible/rhoPorousMRFPimpleFoam/mixerVessel2D/constant/MRFProperties

@@ -19,6 +19,8 @@ zone1
 {
     cellZone    rotor;
 
+    active      on;
+
     // Fixed patches (by default they 'move' with the MRF zone)
     nonRotatingPatches ();
 

tutorials/compressible/rhoPorousMRFSimpleFoam/angledDuctImplicit/constant/sourcesProperties

@@ -26,6 +26,7 @@ source1
 
     fixedTemperatureSourceCoeffs
     {
+        mode            constant;
         temperature     350;
     }
 }

tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/constant/sourcesProperties

@@ -26,6 +26,7 @@ source1
 
     fixedTemperatureSourceCoeffs
     {
+        mode            constant;
         temperature     2000;
     }
 }