blockMesh: Change default location of blockMeshDict from constant/polyMesh to system

For multi-region cases the default location of blockMeshDict is now system/<region name>

If the blockMeshDict is not found in system then the constant directory
is also checked providing backward-compatibility

tutorials/compressible/rhoLTSPimpleFoam/angledDuct/Allrun

@@ -1,7 +1,7 @@
 #!/bin/sh
 cd ${0%/*} || exit 1    # Run from this directory
 
-m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+m4 system/blockMeshDict.m4 > system/blockMeshDict
 
 # Source tutorial run functions
 . $WM_PROJECT_DIR/bin/tools/RunFunctions

tutorials/compressible/rhoPimpleFoam/ras/angledDuct/Allrun

@@ -1,7 +1,7 @@
 #!/bin/sh
 cd ${0%/*} || exit 1    # Run from this directory
 
-m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+m4 system/blockMeshDict.m4 > system/blockMeshDict
 
 # Source tutorial run functions
 . $WM_PROJECT_DIR/bin/tools/RunFunctions

tutorials/compressible/rhoPimpleFoam/ras/mixerVessel2D/makeMesh

@@ -4,5 +4,5 @@ cd ${0%/*} || exit 1    # Run from this directory
 # Source tutorial run functions
 . $WM_PROJECT_DIR/bin/tools/RunFunctions
 
-m4 < constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+m4 < system/blockMeshDict.m4 > system/blockMeshDict
 runApplication blockMesh

tutorials/compressible/rhoPimplecFoam/angledDuct/Allrun

@@ -1,7 +1,7 @@
 #!/bin/sh
 cd ${0%/*} || exit 1    # Run from this directory
 
-m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+m4 system/blockMeshDict.m4 > system/blockMeshDict
 
 # Source tutorial run functions
 . $WM_PROJECT_DIR/bin/tools/RunFunctions

tutorials/compressible/rhoPorousSimpleFoam/angledDuctExplicit/system/blockMeshDict

@@ -0,0 +1,123 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// block definition for a porosity with an angled inlet/outlet
+// the porosity is not aligned with the main axes
+//
+
+convertToMeters 0.001;
+
+vertices
+(
+    // inlet region
+    ( -150  0  -25 )  // pt 0 (in1b)
+    ( -150 35.35533906  -25 ) // pt 1 (in2b)
+    ( -150  0  25 )  // pt 2 (in1f)
+    ( -150 35.35533906  25 ) // pt 3 (in2f)
+
+    // join inlet->outlet
+    (  0 0  -25 )    // pt 4 (join1b)
+    ( -35.35533906   35.35533906  -25 ) // pt 5 (join2b)
+    (  0 0  25 )    // pt 6 (join1f)
+    ( -35.35533906   35.35533906  25 ) // pt 7 (join2f)
+
+    // porosity ends ->outlet
+    ( 70.71067812 70.71067812  -25 )  // pt 8 (poro1b)
+    ( 35.35533906 106.06601718  -25 )  // pt 9 (poro2b)
+    ( 70.71067812 70.71067812  25 )  // pt 10 (poro1f)
+    ( 35.35533906 106.06601718  25 )  // pt 11 (poro2f)
+
+    // outlet
+    ( 141.42135624 141.42135624 -25 ) // pt 12 (out1b)
+    ( 106.06601718 176.7766953 -25 ) // pt 13 (out2b)
+    ( 141.42135624 141.42135624 25 ) // pt 14 (out1f)
+    ( 106.06601718 176.7766953 25 ) // pt 15 (out2f)
+);
+
+blocks
+(
+    // inlet block
+    hex (0 4 5 1 2 6 7 3)
+    inlet ( 15 20 20 ) simpleGrading (1 1 1)
+
+    // porosity block
+    hex (4 8 9 5 6 10 11 7)
+    porosity ( 20 20 20 ) simpleGrading (1 1 1)
+
+    // outlet block
+    hex (8 12 13 9 10 14 15 11)
+    outlet ( 20 20 20 )  simpleGrading (1 1 1)
+);
+
+edges
+(
+);
+
+patches
+(
+    // is there no way of defining all my 'defaultFaces' to be 'wall'?
+    wall front
+    (
+    // inlet block
+    (2 6 7 3)
+    // outlet block
+    (10 14 15 11)
+    )
+
+    wall back
+    (
+    // inlet block
+    (1 5 4 0)
+    // outlet block
+    (9 13 12 8)
+    )
+
+    wall walls
+    (
+    // inlet block
+    (2 0 4 6)
+    (7 5 1 3)
+    // outlet block
+    (10 8 12 14)
+    (15 13 9 11)
+    )
+
+    wall porosityWall
+    (
+    // porosity block
+    (6 10 11 7)
+    // porosity block
+    (5 9 8 4)
+    // porosity block
+    (6 4 8 10)
+    (11 9 5 7)
+    )
+
+    patch inlet
+    (
+    (3 1 0 2)
+    )
+
+    patch outlet
+    (
+    (15 13 12 14)
+    )
+);
+
+mergePatchPairs
+(
+);
+
+// ************************************************************************* //

tutorials/compressible/rhoPorousSimpleFoam/angledDuctExplicit/system/blockMeshDict.m4

@@ -0,0 +1 @@
+../../angledDuctImplicit/system/blockMeshDict.m4

tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/Allrun

@@ -1,7 +1,7 @@
 #!/bin/sh
 cd ${0%/*} || exit 1    # Run from this directory
 
-m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+m4 system/blockMeshDict.m4 > system/blockMeshDict
 
 # Source tutorial run functions
 . $WM_PROJECT_DIR/bin/tools/RunFunctions

tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/constant/polyMesh/boundary

@@ -20,24 +20,28 @@ FoamFile
     front
     {
         type            wall;
+        inGroups        1(wall);
         nFaces          700;
         startFace       63400;
     }
     back
     {
         type            wall;
+        inGroups        1(wall);
         nFaces          700;
         startFace       64100;
     }
-    wall
+    walls
     {
         type            wall;
+        inGroups        1(wall);
         nFaces          1400;
         startFace       64800;
     }
     porosityWall
     {
         type            wall;
+        inGroups        1(wall);
         nFaces          1600;
         startFace       66200;
     }

tutorials/compressible/rhoPorousSimpleFoam/angledDuctImplicit/system/blockMeshDict

@@ -0,0 +1,123 @@
+/*--------------------------------*- C++ -*----------------------------------*\
+| =========                 |                                                 |
+| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
+|  \\    /   O peration     | Version:  dev                                   |
+|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
+|    \\/     M anipulation  |                                                 |
+\*---------------------------------------------------------------------------*/
+FoamFile
+{
+    version     2.0;
+    format      ascii;
+    class       dictionary;
+    object      blockMeshDict;
+}
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// block definition for a porosity with an angled inlet/outlet
+// the porosity is not aligned with the main axes
+//
+
+convertToMeters 0.001;
+
+vertices
+(
+    // inlet region
+    ( -150  0  -25 )  // pt 0 (in1b)
+    ( -150 35.35533906  -25 ) // pt 1 (in2b)
+    ( -150  0  25 )  // pt 2 (in1f)
+    ( -150 35.35533906  25 ) // pt 3 (in2f)
+
+    // join inlet->outlet
+    (  0 0  -25 )    // pt 4 (join1b)
+    ( -35.35533906   35.35533906  -25 ) // pt 5 (join2b)
+    (  0 0  25 )    // pt 6 (join1f)
+    ( -35.35533906   35.35533906  25 ) // pt 7 (join2f)
+
+    // porosity ends ->outlet
+    ( 70.71067812 70.71067812  -25 )  // pt 8 (poro1b)
+    ( 35.35533906 106.06601718  -25 )  // pt 9 (poro2b)
+    ( 70.71067812 70.71067812  25 )  // pt 10 (poro1f)
+    ( 35.35533906 106.06601718  25 )  // pt 11 (poro2f)
+
+    // outlet
+    ( 141.42135624 141.42135624 -25 ) // pt 12 (out1b)
+    ( 106.06601718 176.7766953 -25 ) // pt 13 (out2b)
+    ( 141.42135624 141.42135624 25 ) // pt 14 (out1f)
+    ( 106.06601718 176.7766953 25 ) // pt 15 (out2f)
+);
+
+blocks
+(
+    // inlet block
+    hex (0 4 5 1 2 6 7 3)
+    inlet ( 15 20 20 ) simpleGrading (1 1 1)
+
+    // porosity block
+    hex (4 8 9 5 6 10 11 7)
+    porosity ( 20 20 20 ) simpleGrading (1 1 1)
+
+    // outlet block
+    hex (8 12 13 9 10 14 15 11)
+    outlet ( 20 20 20 )  simpleGrading (1 1 1)
+);
+
+edges
+(
+);
+
+patches
+(
+    // is there no way of defining all my 'defaultFaces' to be 'wall'?
+    wall front
+    (
+    // inlet block
+    (2 6 7 3)
+    // outlet block
+    (10 14 15 11)
+    )
+
+    wall back
+    (
+    // inlet block
+    (1 5 4 0)
+    // outlet block
+    (9 13 12 8)
+    )
+
+    wall walls
+    (
+    // inlet block
+    (2 0 4 6)
+    (7 5 1 3)
+    // outlet block
+    (10 8 12 14)
+    (15 13 9 11)
+    )
+
+    wall porosityWall
+    (
+    // porosity block
+    (6 10 11 7)
+    // porosity block
+    (5 9 8 4)
+    // porosity block
+    (6 4 8 10)
+    (11 9 5 7)
+    )
+
+    patch inlet
+    (
+    (3 1 0 2)
+    )
+
+    patch outlet
+    (
+    (15 13 12 14)
+    )
+);
+
+mergePatchPairs
+(
+);
+
+// ************************************************************************* //

tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff/Allrun

@@ -1,7 +1,7 @@
 #!/bin/sh
 cd ${0%/*} || exit 1    # Run from this directory
 
-m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
+m4 system/blockMeshDict.m4 > system/blockMeshDict
 
 # Source tutorial run functions
 . $WM_PROJECT_DIR/bin/tools/RunFunctions

tutorials/compressible/sonicLiquidFoam/Allrun

@@ -6,7 +6,7 @@ cd ${0%/*} || exit 1    # Run from this directory
 
 setDecompressionTankFine()
 {
-    blockMeshDict="constant/polyMesh/blockMeshDict"
+    blockMeshDict="system/blockMeshDict"
     controlDict="system/controlDict"
 
     sed \