CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > ANSYS Meshing & Geometry

[ICEM] Meshing Issues in ICEM

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   May 24, 2010, 13:21
Question Meshing Issues in ICEM
  #1
New Member
 
Amod Kumar
Join Date: Jan 2010
Location: Delhi, India
Posts: 14
Rep Power: 7
amod_kumar is on a distinguished road
Hello All,
Though I highly appreciate ICEM CFD, lately extensive usage of this software has revealed lot of weakness in this software. I hope my message reach to the development team:

1. Periodicity and Swept block: Even when periodicity is set on vertices, if an array of blocks encompassing the tow faces of periodic surfaces are marked as Swept, the priodicity gets lost. This is very troubling as you have no other option but the swept blocks to reduce the node count on parallel edges.

2. The "Pre-mesh Quality" under Blocking menu calculates Equi-angle Skewness of prism element zero. However, mesh quality under edit mesh seems to be OK. This is very time consuming.

3. The definition of ASPECT RATIO under Pre-mesh Quality and Edit Mesh Quality is on different scale. Why can't both the method reports A.R. on same scale (say either 0~1 or 1~ infinity).

4. The swept block method works well (i.e. generates good quality mesh) only when the associated faces are plane. On curved faces, they tend to make highly skewed hexa/prisms.

5. When blocking is active and user tries to set mesh count on a particular line or surface, the Edge Parameter setting on edges gets changed to some arbitrary number even when Update Parameters button has not been used. This is required in V12 where a surface mesh can be associated to free face of the swept block.

6. Many times when you use UNDO button, the colour scheme of parts under model tree gets changes to same colour.

7. Even when the geometry is a cuboid, it is impossible to generate All-Hex mesh without using Blocking technique.

With growing timeline pressure, I think it is wiser to recommend my manager to switch to other software such as ANSA or AutoGRID. I see no major development in ICEM since last 3~4 years.
amod_kumar is offline   Reply With Quote

Old   June 21, 2010, 11:26
Default Duplicate...
  #2
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,662
Blog Entries: 1
Rep Power: 35
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Meshing Issues in ICEM
PSYMN is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[ICEM] Meshing Issues in ICEM amod_kumar ANSYS Meshing & Geometry 4 June 23, 2010 07:57
[ICEM] Need help in ICEM CFD Mapped Meshing falconf16 ANSYS Meshing & Geometry 3 February 19, 2010 15:21
ICEM Meshing Jaloha CFX 0 April 1, 2008 06:24
Missing tets along line when meshing with ICEM CFD Georges P. Côté CFX 6 March 23, 2006 01:34
ICEM meshing problem Forrest CFX 4 May 25, 2005 18:37


All times are GMT -4. The time now is 03:58.