[ICEM] Periodic mesh

Cecco · May 30, 2012, 03:59

Hi guys,
I'm trying to study the flow filed insiede a centrifugal blower.
I'm meshing the rotating domain with tetra/prism elements by ICEM.
I've meshed just a portion on the entire domain that will be copied around rotatoty axis.
This portion has two periodic walls and the question is the following:
why when I unable the visualization of one of these walls, some "holes" appear on the other one? Is that normal?

Far · May 30, 2012, 04:18

pics please

Cecco · May 30, 2012, 09:20

Quote:

Originally Posted by Far

pics please

First Pic contains periodic wall. The rotation is along Z direction.
Second pic I disabled periodic wall and part of the wall (different colour) continue to stay. It's something like the part of the wall who stay belong to the other periodic wall.

Is that normal? Or something went wrong?

PSYMN · May 31, 2012, 17:40

Not normal...

Is it possible that you have two overlapping surfaces in that location and some of the elements are just associating with the wrong one?

Cecco · June 4, 2012, 09:02

Yes, I guess the mistake is the association. Because if I use "Repaire Mesh --> Associate Mesh" automatically I have no problem anymore.

Thanks

Far · June 4, 2012, 10:09

Strange.....................

May 30, 2012, 03:59	Periodic mesh	#1
Cecco Member Francesco Join Date: Jan 2012 Posts: 31 Rep Power: 14	Hi guys, I'm trying to study the flow filed insiede a centrifugal blower. I'm meshing the rotating domain with tetra/prism elements by ICEM. I've meshed just a portion on the entire domain that will be copied around rotatoty axis. This portion has two periodic walls and the question is the following: why when I unable the visualization of one of these walls, some "holes" appear on the other one? Is that normal?

May 31, 2012, 17:40		#4
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Not normal... Is it possible that you have two overlapping surfaces in that location and some of the elements are just associating with the wrong one? __________________ ----------------------------------------- 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

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[ICEM] surface mesh merging problem	everest	ANSYS Meshing & Geometry	44	April 14, 2016 07:41
Periodic mesh creation in ICEM	epa	Main CFD Forum	1	May 1, 2012 17:24
[Gmsh] 2D Mesh Generation Tutorial for GMSH	aeroslacker	OpenFOAM Meshing & Mesh Conversion	12	January 19, 2012 04:52
[ICEM] Periodic Boundaries for Hexa/Tetra mesh	sebastian	ANSYS Meshing & Geometry	0	December 23, 2009 06:57
Icemcfd 11: Loss of mesh from surface mesh option?	Joe	CFX	2	March 26, 2007 19:10

May 30, 2012, 04:18		#2
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	pics please

June 4, 2012, 09:02		#5
Cecco Member Francesco Join Date: Jan 2012 Posts: 31 Rep Power: 14	Yes, I guess the mistake is the association. Because if I use "Repaire Mesh --> Associate Mesh" automatically I have no problem anymore. Thanks

June 4, 2012, 10:09		#6
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	Strange.....................