snappyHexMesh/flange tutorial: Removed refinement of boss and increased overall resolution

tutorials/mesh/snappyHexMesh/flange/constant/polyMesh/blockMeshDict

@@ -30,7 +30,7 @@ vertices
 
 blocks
 (
-    hex (0 1 2 3 4 5 6 7) (15 15 9) simpleGrading (1 1 1)
+    hex (0 1 2 3 4 5 6 7) (20 16 12) simpleGrading (1 1 1)
 );
 
 edges

tutorials/mesh/snappyHexMesh/flange/system/snappyHexMeshDict

@@ -42,16 +42,6 @@ geometry
         centre (0 0 -0.012);
         radius 0.003;
     }
-
-    //- Refine a bit extra around the edge of the flange. With only two cells
-    //  across it might/might not mesh correctly.
-    refineCap
-    {
-        type searchableCylinder;
-        point1 (0 0.021 -0.01075);
-        point2 (0 0.025 -0.01075);
-        radius 0.013;
-    }
 };
 
 
@@ -144,11 +134,6 @@ castellatedMeshControls
             mode inside;
             levels ((1E15 3));
         }
-        refineCap
-        {
-            mode inside;
-            levels ((1E15 3));
-        }
     }