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

Prism layer in ICEMCFD

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 4, 2011, 03:51
Default Prism layer in ICEMCFD
  #1
New Member
 
Shankar
Join Date: Jun 2009
Location: India
Posts: 9
Rep Power: 8
shankar1221989 is on a distinguished road
Hey hi,

I am new to ICEMCFD but familiar to Gambit/TGrid.

I am trying to replicate the same meshing strategy that i followed in Gambit in ICEMCFD. But I am facing a few issues.

1. In gambit, the boundary layer cells i.e. the prism cells are rounded off along the trailing edge vertex i.e. the fineness along the boundary layer is not allowed to propagate till the far-field. Do we have a similar option in ICEMCFD?
Attached Images
File Type: jpg icem.jpg (79.5 KB, 48 views)
File Type: jpg gambit.jpg (83.4 KB, 54 views)
shankar1221989 is offline   Reply With Quote

Old   January 8, 2011, 16:03
Default Topology...
  #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
Those are just different topologies...

The ICEM CFD mesh is using a CGRID topology.

The Gambit mesh is using (sortof) an Ogrid topology.

You can generate an OGrid topology for the airfoil in ICEM CFD hexa. It is actually one step LESS than was needed to generate the CGrid (Don't select a side edge).

See the 1 of 3 of my series on this...

http://www.youtube.com/user/ansysinc#p/u/8/tYrbScUH9RE

I would say that a CGrid would be much better for most situations, especially if the trailing edge is very thin or sharp.

Both meshes need improvement, but I would say the ICEM CFD one has the better topology.
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
Boundary layer generation problems ivan_cozza OpenFOAM Native Meshers: snappyHexMesh and Others 0 October 6, 2010 13:47
ICEM Prism Layer transition between surface with prism layers and one without TWaung ANSYS Meshing & Geometry 2 October 12, 2009 14:56
Trimmer & prism layer peresah STAR-CCM+ 6 October 6, 2009 14:39
Icemcfd: Preventing prism inflation collisions? Joe CFX 1 July 31, 2007 09:13
errors Fahad Main CFD Forum 0 March 23, 2004 14:20


All times are GMT -4. The time now is 20:18.