[ICEM] Please help a mesh problem

zhaohui · October 6, 2009, 17:32

Hello,

I used ICEM to creat a mesh for a gas filter. Basically it has lots of pipe-in-pipe structures and it costs me, a new user of ICEM, long time to creat a hex mesh.

But when I output the mesh to fluent, fluent indicates it has an error. The warning message is "no face for a node, centeroid xc=-0.54,yc=-0.59,zc=-0.54".

Anyone know what causes this problem? How should I correct it?

Thanks a lot!

Zhaohui

rwryne · October 7, 2009, 07:39

Try this:

Under the Edit Mesh tab, click the "Check Mesh" option (shows a grid with a check mark)

Run that with its default settings before exporting your mesh and see if htat fixes your problem.

PSYMN · October 7, 2009, 10:38

Fluent requires that the volumes be surrounded by shells so it can hang bocos on them. (CFX can close them off for you).

My guess is that you have some "uncovered faces" somewhere. There is a check for this under the Edit Mesh => Check Mesh.

To fix it at the blocking level, find the face and associate it with the adjacent surface.

zhaohui · October 7, 2009, 16:33

Thank you so much, Ryne!

Zhaohui

zhaohui · October 7, 2009, 16:34

Thank you so much, Simon and Ryne! I will try your suggestions right now.

Thanks again!

Zhaohui

October 6, 2009, 17:32	Please help a mesh problem	#1
zhaohui New Member Join Date: Aug 2009 Posts: 11 Rep Power: 16	Hello, I used ICEM to creat a mesh for a gas filter. Basically it has lots of pipe-in-pipe structures and it costs me, a new user of ICEM, long time to creat a hex mesh. But when I output the mesh to fluent, fluent indicates it has an error. The warning message is "no face for a node, centeroid xc=-0.54,yc=-0.59,zc=-0.54". Anyone know what causes this problem? How should I correct it? Thanks a lot! Zhaohui

October 7, 2009, 10:38	Uncovered faces...	#3
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Fluent requires that the volumes be surrounded by shells so it can hang bocos on them. (CFX can close them off for you). My guess is that you have some "uncovered faces" somewhere. There is a check for this under the Edit Mesh => Check Mesh. To fix it at the blocking level, find the face and associate it with the adjacent surface.

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October 7, 2009, 07:39		#2
rwryne Senior Member Ryne Whitehill Join Date: Aug 2009 Posts: 312 Rep Power: 18	Try this: Under the Edit Mesh tab, click the "Check Mesh" option (shows a grid with a check mark) Run that with its default settings before exporting your mesh and see if htat fixes your problem.

October 7, 2009, 16:33		#4
zhaohui New Member Join Date: Aug 2009 Posts: 11 Rep Power: 16	Thank you so much, Ryne! Zhaohui

October 7, 2009, 16:34		#5
zhaohui New Member Join Date: Aug 2009 Posts: 11 Rep Power: 16	Thank you so much, Simon and Ryne! I will try your suggestions right now. Thanks again! Zhaohui