added feature snapping criteria to snappyHexMeshDict and changed decomposition method

constant/polyMesh/boundary

@@ -0,0 +1,30 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  2206                                  |
+|   \\  /    A nd           | Website:  www.openfoam.com                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    arch        "LSB;label=32;scalar=64";
+    class       polyBoundaryMesh;
+    location    "constant/polyMesh";
+    object      boundary;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+1
+(
+    defaultFaces
+    {
+        type            empty;
+        inGroups        1(empty);
+        nFaces          50400;
+        startFace       1150800;
+    }
+)
+
+// ************************************************************************* //

system/blockMeshDict

@@ -18,19 +18,19 @@ scale   1;
 
 vertices
 (
-    (-0.33 -0.33 -0.044)
-    ( 0.11 -0.33 -0.044)
-    ( 0.11  0.11 -0.044)
-    (-0.33  0.11 -0.044)
-	(-0.33 -0.33  0.044)
-    ( 0.11 -0.33  0.044)
-    ( 0.11  0.11  0.044)
-    (-0.33  0.11  0.044)
+    (-0.5 -0.5 -0.05)
+    ( 0.2 -0.5 -0.05)
+    ( 0.2  0.2 -0.05)
+    (-0.5  0.2 -0.05)
+	(-0.5 -0.5  0.05)
+    ( 0.2 -0.5  0.05)
+    ( 0.2  0.2  0.05)
+    (-0.5  0.2  0.05)
 );
 
 blocks
 (
-    hex (0 1 2 3 4 5 6 7) (100 100 20) simpleGrading (1 1 1)
+    hex (0 1 2 3 4 5 6 7) (140 140 20) simpleGrading (1 1 1)
 );
 
 edges

system/controlDict

@@ -34,7 +34,7 @@ purgeWrite        0;
 
 writeFormat       ascii;
 
-writePrecision    16;
+writePrecision    8;
 
 writeCompression  true;
 

system/decomposeParDict

@@ -16,7 +16,7 @@ FoamFile
 
 numberOfSubdomains 4;
 
-method          hierarchical;
+method          scotch;
 
 coeffs
 {

system/snappyHexMeshDict

@@ -115,6 +115,22 @@ snapControls
     nRelaxIter 5;
     nFeatureSnapIter 3;
     strictRegionSnap true;
+
+    // Feature snapping - copied from template dict generated by foamGetDict snappyHexMeshDict
+        // Number of feature edge snapping iterations.
+        // Leave out altogether to disable.
+        nFeatureSnapIter 10;
+
+        // Detect (geometric only) features by sampling the surface
+        // (default=false).
+        implicitFeatureSnap false;
+
+        // Use castellatedMeshControls::features (default = true)
+        explicitFeatureSnap true;
+
+        // Detect features between multiple surfaces
+        // (only for explicitFeatureSnap, default = false)
+        multiRegionFeatureSnap false;
 }
 
 addLayersControls