[ICEM] Complicated geometry blocking strategy

sidd · October 2, 2012, 20:12

Hi,

I have a not so straightforward domain for which I have to do a structured mesh. I had usually dealt with 2-D domains till now, so now this one is confusing me.
Mesh_query.jpg
Here is how it looks in ICEM
Mesh_query_ICEM.jpg

I would appreciate if you guys can share any suggestions about the blocking strategy.

P.S. If structured mesh generation for complicated geometries has already been discussed in the forum at some time kindly let me know. Maybe I am not selecting the right keywords

PSYMN · October 3, 2012, 14:34

It is really tough actually. I did a spiral blood pump once, but that was with years of experience and some trickery... and it had a simpler round perimeter so I could twist things more easily.

I would not try this one with structured hexa. Solvers are good enough that it is probably not worth the hassle. I highly recommend you try an unstructured method such as tetra prism or cutcel, you can put a finer mesh (to make up for the lack of hexa) and let the solver do the harder work.

October 2, 2012, 20:12	Complicated geometry blocking strategy	#1
sidd New Member Mustafa Join Date: Jan 2012 Posts: 7 Rep Power: 14	Hi, I have a not so straightforward domain for which I have to do a structured mesh. I had usually dealt with 2-D domains till now, so now this one is confusing me. Mesh_query.jpg Here is how it looks in ICEM Mesh_query_ICEM.jpg I would appreciate if you guys can share any suggestions about the blocking strategy. P.S. If structured mesh generation for complicated geometries has already been discussed in the forum at some time kindly let me know. Maybe I am not selecting the right keywords

October 3, 2012, 14:34		#2
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	It is really tough actually. I did a spiral blood pump once, but that was with years of experience and some trickery... and it had a simpler round perimeter so I could twist things more easily. I would not try this one with structured hexa. Solvers are good enough that it is probably not worth the hassle. I highly recommend you try an unstructured method such as tetra prism or cutcel, you can put a finer mesh (to make up for the lack of hexa) and let the solver do the harder work. __________________ ----------------------------------------- Please help guide development at ANSYS by filling in these surveys Public ANSYS ICEM CFD Users Survey This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)... CFD Online Users Survey

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