CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > STAR-CCM+

Generate hexahedral mesh

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 10, 2009, 03:23
Default Generate hexahedral mesh
  #1
New Member
 
Join Date: Jul 2009
Posts: 6
Rep Power: 6
pluto is on a distinguished road
Hi,

Can somebody please help me with the following. I have an axisymmetric flow that I need to model exiting a nozzle. I have created a 3D mesh. I extruded the nozzle exit boundary downstream to represent the external flow domain. How can I generate a hexahedral mesh from the 3D mesh? Please see attached images.

Thanks

3d mesh i created.jpg

mesh I require.jpg
pluto is offline   Reply With Quote

Old   October 13, 2009, 04:23
Default
  #2
New Member
 
fnk
Join Date: Aug 2009
Posts: 4
Rep Power: 6
fnk382 is on a distinguished road
Hi Pluto,
It seems they do not have standard hexehedral meshing model to tool. They have the trimmer but it produces, for me, a disarrayed set to meshes.

I had to create a nice one in Gambit in order to import it to CCM+. Try that or use Star-CD.

Note that ANSYS, except ICEM hexa (you get this base on license type) does not also come with hexa mesh tools. Once, gambit becomes/is considered obsolete, one will have no choice but stick to the cost effective unstructured grids anyways.

Good meshing Pluto. Oh, and if you figure a way to do this, let me know.
fnk382 is offline   Reply With Quote

Old   October 13, 2009, 16:38
Default
  #3
New Member
 
Join Date: Jul 2009
Posts: 6
Rep Power: 6
pluto is on a distinguished road
Hi fnk382

thanks for the advice. unfortunately i dont have access to STAR-CD but only to STAR-Design. I have checked on STAR-Design and there is no feature to generate a hexahedral mesh. Its a bit unfortunate that STAR-CCM+ does not have a hexahedral volume meshing tool. for now i will have to continue with the cylindrical extruded mesh. if i figure anything out i'll get back to you

thanks for the help fnk382
pluto is offline   Reply With Quote

Old   October 17, 2009, 15:37
Default
  #4
New Member
 
HP Kritzinger
Join Date: May 2009
Location: South Africa
Posts: 24
Rep Power: 7
mystic_cfd is on a distinguished road
just a comment to fnk382:
The Ansys meshing platform does have hex meshing capability.

perhaps you should look at the CAE Linux 2009 distro. There are a few freeware meshing tools included which might work for you.
mystic_cfd 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
SnappyHexMesh not generate mesh first time mavimo OpenFOAM Mesh Utilities 4 August 26, 2008 07:08
Use Gambit to generate 3D mesh ! ! ! yuanye FLUENT 0 June 3, 2008 22:03
basic of mesh refinement arya CFX 4 June 19, 2007 12:21
Problem when trying to generate a new mesh gaottino OpenFOAM Meshing & Mesh Conversion 0 June 30, 2006 07:51
General questions on grid-based computing Adrin Gharakhani Main CFD Forum 21 June 5, 2000 13:47


All times are GMT -4. The time now is 21:43.