CFD Online Logo CFD Online URL
Home > Forums > CFX

Unstructured Mesh using Mesh adaption

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

LinkBack Thread Tools Display Modes
Old   May 31, 2011, 06:16
Default Unstructured Mesh using Mesh adaption
New Member
Join Date: Feb 2011
Posts: 5
Rep Power: 8
sidzishere is on a distinguished road

I have been trying to perform mesh adaption on a structured hexa-mesh using CFX and the resultant mesh is always without any hanging nodes. This in turn produces a large expansion ratio across cells which makes the results to lose convergence after adaption. Is there some way to adjust the adaption parameters to make the mesh adaption behave better. If the same adaption is done using fluent, the mesh generated is more uniform without large expansions because fluent allows the generation of hanging nodes.

Could someone help me with this issue.
Thanks a lot in advance
sidzishere is offline   Reply With Quote

Old   May 31, 2011, 10:18
New Member
A.R. Baserinia
Join Date: Jan 2010
Location: Canada
Posts: 24
Rep Power: 9
baserinia is on a distinguished road
Hi, You're question is not very clear. When you refine an element, the expansion ratio at the intereface of refined and unrefined regions will be 2. How is that different between Fluent and CFX?

The only thing about CFX is that, if you apply the adaptation to a structured mesh, at the intereface of refined/unrefined regions, you get tets. So if you want a high-quality mesh, your best bet would be to design a non-uniform mesh manually.
baserinia is offline   Reply With Quote


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 won't work - zeros everywhere! sc298 OpenFOAM Native Meshers: snappyHexMesh and Others 2 March 27, 2011 21:11
2D unstructured mesh majidhojjat OpenFOAM Meshing & Mesh Conversion 1 May 14, 2009 17:09
Structured and Unstructured mesh Jingwei FLUENT 0 March 2, 2009 22:29
Unstructured hex mesh lr103476 OpenFOAM Other Meshers: ICEM, Star, Ansys, Pointwise, GridPro, Ansa, ... 12 November 24, 2006 06:56
2D Modelling using unstructured mesh Yingchun CFX 8 December 12, 2005 07:05

All times are GMT -4. The time now is 18:42.