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

parallel Edges

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 16, 2009, 09:23
Default parallel Edges
  #1
New Member
 
Johannes
Join Date: May 2009
Posts: 16
Rep Power: 8
jopawipr is on a distinguished road
Hey, this is Johannes.
I'm a greenhorn in icem cfd, but I'm trying to learn it and I'm happy about every answer!

My problem is, that icem recognize some edges as parallel and some not. Cause of this, it connects the wrong nodes.
I'm running icem version 12.0.1 and try to make a hexa mesh.

Thank you very much for any help!!

Johannes

P.S. If you wish, i could send you the geometry file
Attached Images
File Type: jpg blocking.jpg (43.7 KB, 17 views)
File Type: jpg wrongmesh.jpg (51.0 KB, 15 views)

Last edited by jopawipr; June 16, 2009 at 11:15.
jopawipr is offline   Reply With Quote

Old   June 17, 2009, 07:36
Default
  #2
New Member
 
Join Date: Mar 2009
Posts: 20
Rep Power: 8
xamo is on a distinguished road
Hi,

it looks like there went something wrong merging some blocks.
Just do some additional splits in the blocking the bad region to find the mistake. Perhaps you have to delete the bad block and built it new.

regads
xamo
xamo is offline   Reply With Quote

Old   June 17, 2009, 14:51
Default Think in terms of blocking topology, not geometry...
  #3
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
Yes, I agree with Xamo,

To prevent this sort of problem in future, you need to think more about the topology of the geometry rather than trying to block it as it lays and then merging away verts until it fits.

In this case, your blocking is a simple T-Pipe with a collapsed tipů You should only need to merge a single node pair right at the very end. Everything else should just be to split out that simple shape, delete the blocks that are not part of the topology and then fit (associate) the blocking to the geometry.
PSYMN is offline   Reply With Quote

Old   June 17, 2009, 14:51
Default 2D Surface blocking option...
  #4
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
If you have surfaces for this 2D geometry, One other thing you might try is to automate the meshing using the 2D surface blocking option. Set it to mostly mapped and see what happens.
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
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 06:36
Script to Run Parallel Jobs in Rocks Cluster asaha OpenFOAM Running, Solving & CFD 12 July 4, 2012 22:51
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 02:58
Cyclic patch in parallel calculations didomenico OpenFOAM Running, Solving & CFD 4 March 7, 2007 06:46
Parallel Computing Classes at San Diego Supercomputer Center Jan. 20-22 Amitava Majumdar Main CFD Forum 0 January 5, 1999 13:00


All times are GMT -4. The time now is 16:37.