TUT: relocate externalCoupled heater tutorial, add steady-state version

tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledMultiRegionHeater/0/T → tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledHeater/0/T

@@ -23,7 +23,7 @@ boundaryField
     ".*"
     {
         type            calculated;
-        value           uniform 300;
+        value           $internalField;
     }
 }
 

tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledMultiRegionHeater/0/U → tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledHeater/0/U

@@ -23,7 +23,7 @@ boundaryField
     ".*"
     {
         type            calculated;
-        value           uniform (0.01 0 0);
+        value           $internalField;
     }
 }
 

tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledMultiRegionHeater/0/epsilon → tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledHeater/0/epsilon

@@ -23,9 +23,8 @@ boundaryField
     ".*"
     {
         type            calculated;
-        value           uniform 0.01;
+        value           $internalField;
     }
 }
 
-
 // ************************************************************************* //

tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledMultiRegionHeater/0/k → tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledHeater/0/k

@@ -23,9 +23,8 @@ boundaryField
     ".*"
     {
         type            calculated;
-        value           uniform 0.1;
+        value           $internalField;
     }
 }
 
-
 // ************************************************************************* //

tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledMultiRegionHeater/0/p → tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledHeater/0/p

@@ -23,7 +23,7 @@ boundaryField
     ".*"
     {
         type            calculated;
-        value           uniform 1e5;
+        value           $internalField;
     }
 }
 

tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledMultiRegionHeater/0/p_rgh → tutorials/heatTransfer/chtMultiRegionFoam/externalCoupledHeater/0/p_rgh

@@ -23,7 +23,7 @@ boundaryField
     ".*"
     {
         type            calculated;
-        value           uniform 1e5;
+        value           $internalField;
     }
 }