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[ICEM] HexaMeshing on a wedge

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Old   January 26, 2012, 17:10
Default HexaMeshing on a wedge
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Max
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Hey Y'all

Im trying to Hexa mesh a wedge in a duct flow. The duct is rectrangular. The wedge is a, well, a wedge. Geometrically, its a rectangle with a triangle, extruded in depth, like this

::::>

the leading edge has a fillet. small radius.

My Problem is now:

AutoHexa meshing crashes. But i can create a surface mesh which looks pretty good. Close around the wedge, the algorith uses traingles to compensate the node count.
Still it crashes.

So i tried blocking. Problem here: the edge connection. If i set a count to the leading edge fillet (like 5, approx), i cant change the count on the way longer trailing edge. even if i turn off copy, the edges are matched. is there a way around this?

same if i have like 100 nodes around the pipe wall, i need to have the same 100 on the corresponding wedge. which leaves one too coarse or the other one too fine.
so is there a way to use blocking and also change mesh count over a surface?

cheers
max
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