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

[ICEM] Multiple edges problem when merging hexa/tetra mesh

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 30, 2013, 20:26
Default Multiple edges problem when merging hexa/tetra mesh
  #1
New Member
 
Andrew Kang
Join Date: Apr 2013
Posts: 18
Rep Power: 12
earth07 is on a distinguished road
Hi, I've been learning how to merge tetra/hexa mesh together
and now I know how to do it for an example in the tutorial.

I'm trying another simple but a bit different example trying to merge
tetra/hexa mesh.

As you can see from file below, I'm merging different sized boxes each with tetra and hexa meshes, and followed the procedure given in the tutorial.

Here's project file link right before merging the volumes.
http://www.2shared.com/file/JC9xFOfh/test.html


At frist, it seems to be working, but when I check the mesh,
I found 'multiple edges around the interface and I want to eliminate
all the multiple edges.

If any of you know how to tackle this problem, please let me know..
I'll really appreciate it..
Attached Images
File Type: jpg problem.jpg (60.5 KB, 62 views)
earth07 is offline   Reply With Quote

Old   May 30, 2013, 22:20
Default
  #2
Super Moderator
 
diamondx's Avatar
 
Ghazlani M. Ali
Join Date: May 2011
Location: Tokyo, Japan
Posts: 1,385
Blog Entries: 23
Rep Power: 28
diamondx will become famous soon enough
an expert once said:

Quote:
Multiple edges are simply edges with more than 2 surface elements connected. In this case, you have the side walls and the interface elements. This is listed under "possible problems" and not "errors". Your solver probably won't mind the multiple edges at all. However, if you want flow to pass thru the interface between the hexas and tetras you have two choices... Either set up the interface correctly in the solver to allow that to happen (this varies with the solver), or just delete the shells in the interface part before you export to the solver.
By Simon
__________________
Regards,
New to ICEM CFD, try this document --> https://goo.gl/KAOIwm
Ali
diamondx is offline   Reply With Quote

Old   May 30, 2013, 22:56
Default I've read that already.
  #3
New Member
 
Andrew Kang
Join Date: Apr 2013
Posts: 18
Rep Power: 12
earth07 is on a distinguished road
Thanks!
I've figured out the solution to my problem.

Last edited by earth07; May 31, 2013 at 01:32.
earth07 is offline   Reply With Quote

Old   May 31, 2013, 03:29
Default
  #4
Senior Member
 
Javi
Join Date: Jan 2013
Posts: 276
Rep Power: 16
FJSJ is on a distinguished road
Hi guys,

If I want to do this "...or just delete the shells in the interface part before you export to the solver"... how can I do it? Is that I have not very clear.... Thank you guys!
Attached Images
File Type: jpg 1.jpg (50.3 KB, 52 views)
FJSJ is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[snappyHexMesh] SnappyHexMesh for internal Flow vishwa OpenFOAM Meshing & Mesh Conversion 24 June 27, 2016 08:54
[snappyHexMesh] snappyHexMesh aborting Tobi OpenFOAM Meshing & Mesh Conversion 0 November 10, 2010 03:23
Convergence moving mesh lr103476 OpenFOAM Running, Solving & CFD 30 November 19, 2007 14:09
How to control Minximum mesh space? hung FLUENT 7 April 18, 2005 09:38
unstructured vs. structured grids Frank Muldoon Main CFD Forum 1 January 5, 1999 10:09


All times are GMT -4. The time now is 20:44.