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

[ICEM] Geometric density sources in ICEM

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

Like Tree2Likes
  • 2 Post By rana41671

Reply
 
LinkBack Thread Tools Display Modes
Old   September 6, 2010, 11:46
Default Geometric density sources in ICEM
  #1
New Member
 
Sandeep
Join Date: Aug 2010
Posts: 7
Rep Power: 6
rana41671 is on a distinguished road
Hi,

I had been working on a combustor mesh and I wanted to have a conical density source in the flame region where coal particles enter into the furnace.
After trying several different approaches,( ICEM manual/tutorial doesn't cover this topic nicely) Simon Pereira helped me with a very easy solution. I thought it might be helpful to share with others, so here is what he suggested.

"First, create points... In my case, I started with 4 points (the mid points between the center of one face and the "corners" of the other) and then copy/rotated them to get a circle of points, but how you create them is up to you. Then I created my density from points and selected all these points to create my density region. I set the max size within the density to 4, the rest of the cylinder was set to 16. Then I meshed.


Tada!


Pictured are attached. Good luck with your model.


Note, if you wanted something like a hollow cone or a torus, you could create one section of it and then copy rotate the density zone (just like other geometry entities). They can overlap without causing any problems and you can "add" up any combination of density lines, points, boxes or copies of density zones to get any final zone shape. The smallest max size wins within its respective zone. "

Attached Images
File Type: jpg DensityFromPoints_01.jpg (66.1 KB, 141 views)
File Type: jpg DensityFromPoints_02.jpg (83.8 KB, 127 views)
File Type: jpg DensityFromPoints_Cone_01.jpg (41.0 KB, 124 views)
File Type: jpg DensityFromPoints_Cone_02.jpg (42.0 KB, 125 views)
File Type: jpg DensityFromPoints_Cone_03.jpg (80.3 KB, 127 views)
alquimista and Tobias Adam like this.
rana41671 is offline   Reply With Quote

Old   January 8, 2011, 17:24
Cool Scalable help
  #2
Senior Member
 
PSYMN's Avatar
 
Simon Pereira
Join Date: Mar 2009
Location: Ann Arbor, MI
Posts: 2,650
Blog Entries: 1
Rep Power: 34
PSYMN has a spectacular aura aboutPSYMN has a spectacular aura about
Thanks for posting... I always like it when help for one can help others.
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
Are user-defined sources density weighted? tstorm FLUENT 3 October 14, 2009 15:57
Error in adjusting mesh volume density in ICEM? Shab CFX 0 October 31, 2007 08:24
REAL GAS UDF brian FLUENT 6 September 11, 2006 08:23
How to update polyPatchbs localPoints liu OpenFOAM Running, Solving & CFD 6 December 30, 2005 17:27
Warning 097- AB CD-adapco 6 November 15, 2004 04:41


All times are GMT -4. The time now is 00:28.