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ENH: flange feature edge tutorial:

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- slightly bigger display so re-patching does not pick up original outside
- additional refinement at inlet since 2 cells across is too few occasionally
- changed feature angle to pick up more edges
This commit is contained in:
mattijs
2011-04-06 19:04:17 +01:00
parent 668f97c0ec
commit 9021e777e0
3 changed files with 29 additions and 13 deletions
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2
tutorials/mesh/snappyHexMesh/flange/Allrun
View File

@ -3,5 +3,5 @@
. $WM_PROJECT_DIR/bin/tools/RunFunctions . $WM_PROJECT_DIR/bin/tools/RunFunctions
runApplication blockMesh runApplication blockMesh
runApplication surfaceFeatureExtract -includedAngle 135 -writeObj constant/triSurface/flange.stl flange runApplication surfaceFeatureExtract -includedAngle 150 -writeObj constant/triSurface/flange.stl flange
runApplication snappyHexMesh -overwrite runApplication snappyHexMesh -overwrite

16
tutorials/mesh/snappyHexMesh/flange/constant/polyMesh/blockMeshDict
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@ -18,14 +18,14 @@ convertToMeters 1;
vertices vertices
( (
( -0.0260093 -0.0275 -0.02375) ( -0.03 -0.03 -0.03)
( 0.0260093 -0.0275 -0.02375) ( 0.03 -0.03 -0.03)
( 0.0260093 0.0225 -0.02375) ( 0.03 0.03 -0.03)
( -0.0260093 0.0225 -0.02375) ( -0.03 0.03 -0.03)
( -0.0260093 -0.0275 0.00225014) ( -0.03 -0.03 0.01)
( 0.0260093 -0.0275 0.00225014) ( 0.03 -0.03 0.01)
( 0.0260093 0.0225 0.00225014) ( 0.03 0.03 0.01)
( -0.0260093 0.0225 0.00225014) ( -0.03 0.03 0.01)
); );
blocks blocks

24
tutorials/mesh/snappyHexMesh/flange/system/snappyHexMeshDict
View File

@ -35,12 +35,23 @@ geometry
name flange; name flange;
} }
refine //- Refine a bit extra around the small centre hole
refineHole
{ {
type searchableSphere; type searchableSphere;
centre (0 0 -0.012); centre (0 0 -0.012);
radius 0.003; 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;
}
}; };
@ -110,7 +121,7 @@ castellatedMeshControls
} }
} }
resolveFeatureAngle 45; resolveFeatureAngle 30;
// Region-wise refinement // Region-wise refinement
@ -128,7 +139,12 @@ castellatedMeshControls
refinementRegions refinementRegions
{ {
refine refineHole
{
mode inside;
levels ((1E15 3));
}
refineCap
{ {
mode inside; mode inside;
levels ((1E15 3)); levels ((1E15 3));
@ -221,7 +237,7 @@ addLayersControls
//- When not to extrude surface. 0 is flat surface, 90 is when two faces //- When not to extrude surface. 0 is flat surface, 90 is when two faces
// make straight angle. // make straight angle.
featureAngle 45; featureAngle 30;
//- Maximum number of snapping relaxation iterations. Should stop //- Maximum number of snapping relaxation iterations. Should stop
// before upon reaching a correct mesh. // before upon reaching a correct mesh.