TUT: generalize (parameterize) blockMeshDict for half-cylinder geometries

- profit from some of the recent modifications to parser expansion

TUT: adjust some #eval statements for less clutter

tutorials/multiphase/compressibleInterFoam/laminar/climbingRod/0.orig/U

@@ -25,7 +25,7 @@ boundaryField
         type            rotatingWallVelocity;
         axis            (0 1 0);
         origin          (0 0 0);
-        omega           constant #eval{ 2.1 * (2*pi()) };  // rev/s -> rads/s
+        omega           constant ${{ 2.1 * (2*pi()) }};  // rev/s -> rads/s
         value           uniform (0 0 0);
     }
 

tutorials/multiphase/compressibleInterIsoFoam/laminar/climbingRod/0.orig/U

@@ -26,7 +26,7 @@ boundaryField
         type            rotatingWallVelocity;
         axis            (0 1 0);
         origin          (0 0 0);
-        omega           constant #eval{ 2.1 * (2*pi()) };  // rev/s -> rads/s
+        omega           constant ${{ 2.1 * (2*pi()) }};  // rev/s -> rads/s
         value           uniform (0 0 0);
     }
     vessel

tutorials/multiphase/overInterDyMFoam/floatingBodyWithSpring/background/constant/dynamicMeshDict

@@ -42,7 +42,7 @@ solvers
 
         centreOfMass        (0.5 0.5 0.4);
         cOfGdisplacement    CofG;
-        
+
         // Cuboid dimensions
         Lx              0.24;
         Ly              0.24;