Introduced the new file unitConversion.H to hold degToRad, radToDeg

and other unit conversion functions as they are required e.g. slug <-> kg.

src/mesh/autoMesh/autoHexMesh/meshRefinement/meshRefinementProblemCells.C

@@ -37,7 +37,7 @@ License
 #include "searchableSurfaces.H"
 #include "polyMeshGeometry.H"
 #include "IOmanip.H"
-#include "mathematicalConstants.H"
+#include "unitConversion.H"
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //