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January 21, 2013, 09:27 |
Tri-Shell growth ratio
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#1 |
Member
Johannes Ringborn
Join Date: Nov 2012
Posts: 40
Rep Power: 13 |
Hello,
is there an option in ICEM to minimize the standard growth ratio of a "Patch-Independent-All Tri" surface mesh? Best regards |
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January 22, 2013, 02:52 |
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#3 |
Senior Member
AB
Join Date: Sep 2009
Location: France
Posts: 323
Rep Power: 21 |
From the documentation for ANSYS ICEM CFD 14.0 :
Tetra Size Ratio controls the growth (edge length) of tetra mesh as it moves away from the surface. For Octree Tetra mesh, size transitions are 2 to 1 locally, but you can still affect the transition rate over a larger number of transitions. For example, if the surface size is 2 and the volume size is 64, you may see something size transitions like the following: Delaunay 2 3 4.5 6.75 10.13 15.19 22.78 34.17 51.26 76.89 Octree 2 2 4 4 8 8 16 32 32 64 If the ratio was 1.5, the big picture would show both the Octree and Delaunay sizes growing at a rate of 1.5, but the Octree method has to fit it to powers of 2 times the smallest size in the model. Also, you can imagine that changing this to 1.4 or 1.6 might not make that much difference to the Octree mesher, at least not for the first few layers, but would directly change the Delaunay progression. |
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January 22, 2013, 04:12 |
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#4 | ||
Super Moderator
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Quote:
Quote:
@Broly: Yes it is. But I think he is looking for surface mesh growth. |
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January 22, 2013, 04:25 |
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#5 |
Member
Johannes Ringborn
Join Date: Nov 2012
Posts: 40
Rep Power: 13 |
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