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

hexaedral mesh

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 21, 2007, 07:18
Default hexaedral mesh
  #1
isabel
Guest
 
Posts: n/a
Hi, everybody

Can CFX work with hexahedral mesh? I have been working with tetrahedral mesh and I have had very good results, but I want to try to improve the convergence. Perhaps with a hexahedral mesh the CFX-Solver works faster. Does anybody know witch mesh is better (tetrahedral or hexahedral)?

  Reply With Quote

Old   March 21, 2007, 11:12
Default Re: hexaedral mesh
  #2
Shastri
Guest
 
Posts: n/a
Hi, yes CFX works well with Hexahedral mesh. In most cases structured hexa mesh gives much accurate results for the same number of nodes compared to tetra mesh. However, complexities in geometry might force you to use unstructured hexa or tetra. This is because a good quality structured mesh is very difficult to obtain for complex geometries. I have worked with ICEM to generate structured hexa. It involves more efforts during meshing than a tetra, but efforts usually pay off well in terms of faster and better convergence and accuracy. Hope that helps. Shastri
  Reply With Quote

Old   March 21, 2007, 13:08
Default Re: hexaedral mesh
  #3
isabel
Guest
 
Posts: n/a
Thank you very mutch. Im also usin ICEM. I`ll try what you have said.
  Reply With Quote

Old   March 22, 2007, 05:59
Default Re: hexaedral mesh
  #4
Dr. Flow Squad
Guest
 
Posts: n/a
... if you have got a hexa license....
  Reply With Quote

Old   March 22, 2007, 07:27
Default Re: hexaedral mesh
  #5
isabel
Guest
 
Posts: n/a
I have got ANSYS ICEM CFD 10.0 Is that enough?
  Reply With Quote

Old   March 23, 2007, 05:57
Default Re: hexaedral mesh
  #6
deLuther
Guest
 
Posts: n/a
ICEM CFD can come in different ways - hexa, tetra/prism, quad and another features like cartesian mesh etc. Each such feature like tetra/prism or hexa includes mesh editor. For CFD is better to have tetra/prism and hexa features. (and also some geometry option) - consult your vendor or support engineer. In general your license must include hexa feature for hexaedral meshing. It looks like:

INCREMENT tetra ... INCREMENT prism ... INCREMENT hexa ...
  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
Number of cells in mesh don't match with size of cellLevel colinB OpenFOAM Native Meshers: snappyHexMesh and Others 11 January 13, 2015 12:47
Converting Starccm+ mesh Ladnam OpenFOAM 0 September 14, 2011 06:30
engrid -> save as .stl with boundarie codes Zymon enGrid 31 August 29, 2011 13:40
fluent add additional zones for the mesh file SSL FLUENT 2 January 26, 2008 12:55
basic of mesh refinement arya CFX 4 June 19, 2007 12:21


All times are GMT -4. The time now is 17:33.