99cfbd818f
The defaultPatch type currently defaults to empty which is appropriate for 1D
and 2D cases but not when creating the initial blockMesh for snappyHexMesh as
the presence of empty patches triggers the inappropriate application of 2D point
constraint corrections following snapping and morphing. To avoid this hidden
problem a warning is now generated from blockMesh when the defaultPatch is not
explicitly set for cases which generate a default patch, i.e. for which the
boundary is not entirely defined. e.g.
.
.
.
Creating block mesh topology
--> FOAM FATAL IO ERROR:
The 'defaultPatch' type must be specified for the 'defaultFaces' patch, e.g. for snappyHexMesh
defaultPatch
{
name default; // optional
type patch;
}
or for 2D meshes
defaultPatch
{
name frontAndBack; // optional
type empty;
}
.
.
.
All the tutorials have been update to include the defaultPatch specification as
appropriate.
158 lines
3.8 KiB
C++
158 lines
3.8 KiB
C++
/*--------------------------------*- C++ -*----------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Version: dev
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\\/ M anipulation |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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format ascii;
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class dictionary;
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object blockMeshDict;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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convertToMeters 1;
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vertices #codeStream
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{
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codeInclude
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#{
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#include "pointField.H"
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#};
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code
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#{
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pointField points(19);
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points[0] = point(0.5, 0, -0.5);
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points[1] = point(1, 0, -0.5);
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points[2] = point(2, 0, -0.5);
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points[3] = point(2, 0.707107, -0.5);
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points[4] = point(0.707107, 0.707107, -0.5);
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points[5] = point(0.353553, 0.353553, -0.5);
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points[6] = point(2, 2, -0.5);
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points[7] = point(0.707107, 2, -0.5);
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points[8] = point(0, 2, -0.5);
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points[9] = point(0, 1, -0.5);
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points[10] = point(0, 0.5, -0.5);
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points[11] = point(-0.5, 0, -0.5);
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points[12] = point(-1, 0, -0.5);
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points[13] = point(-2, 0, -0.5);
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points[14] = point(-2, 0.707107, -0.5);
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points[15] = point(-0.707107, 0.707107, -0.5);
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points[16] = point(-0.353553, 0.353553, -0.5);
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points[17] = point(-2, 2, -0.5);
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points[18] = point(-0.707107, 2, -0.5);
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// Duplicate z points
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label sz = points.size();
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points.setSize(2*sz);
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for (label i = 0; i < sz; i++)
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{
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const point& pt = points[i];
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points[i+sz] = point(pt.x(), pt.y(), -pt.z());
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}
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os << points;
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#};
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};
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blocks
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(
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hex (5 4 9 10 24 23 28 29) (10 10 1) simpleGrading (1 1 1)
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hex (0 1 4 5 19 20 23 24) (10 10 1) simpleGrading (1 1 1)
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hex (1 2 3 4 20 21 22 23) (20 10 1) simpleGrading (1 1 1)
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hex (4 3 6 7 23 22 25 26) (20 20 1) simpleGrading (1 1 1)
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hex (9 4 7 8 28 23 26 27) (10 20 1) simpleGrading (1 1 1)
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hex (15 16 10 9 34 35 29 28) (10 10 1) simpleGrading (1 1 1)
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hex (12 11 16 15 31 30 35 34) (10 10 1) simpleGrading (1 1 1)
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hex (13 12 15 14 32 31 34 33) (20 10 1) simpleGrading (1 1 1)
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hex (14 15 18 17 33 34 37 36) (20 20 1) simpleGrading (1 1 1)
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hex (15 9 8 18 34 28 27 37) (10 20 1) simpleGrading (1 1 1)
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);
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edges
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(
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arc 0 5 45.0 (0 0 1)
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arc 5 10 45.0 (0 0 1)
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arc 1 4 45.0 (0 0 1)
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arc 4 9 45.0 (0 0 1)
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arc 19 24 45.0 (0 0 1)
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arc 24 29 45.0 (0 0 1)
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arc 20 23 45.0 (0 0 1)
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arc 23 28 45.0 (0 0 1)
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arc 11 16 45.0 (0 0 -1)
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arc 16 10 45.0 (0 0 -1)
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arc 12 15 45.0 (0 0 -1)
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arc 15 9 45.0 (0 0 -1)
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arc 30 35 45.0 (0 0 -1)
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arc 35 29 45.0 (0 0 -1)
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arc 31 34 45.0 (0 0 -1)
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arc 34 28 45.0 (0 0 -1)
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);
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defaultPatch
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{
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type empty;
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}
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boundary
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(
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down
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{
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type symmetryPlane;
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faces
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(
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(0 1 20 19)
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(1 2 21 20)
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(12 11 30 31)
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(13 12 31 32)
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);
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}
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right
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{
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type patch;
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faces
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(
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(2 3 22 21)
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(3 6 25 22)
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);
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}
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up
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{
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type symmetryPlane;
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faces
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(
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(7 8 27 26)
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(6 7 26 25)
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(8 18 37 27)
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(18 17 36 37)
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);
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}
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left
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{
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type patch;
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faces
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(
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(14 13 32 33)
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(17 14 33 36)
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);
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}
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cylinder
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{
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type symmetry;
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faces
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(
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(10 5 24 29)
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(5 0 19 24)
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(16 10 29 35)
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(11 16 35 30)
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);
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}
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);
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// ************************************************************************* //
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