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

Gradient Discretization CFX vs Fluent

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

Reply
 
LinkBack Thread Tools Display Modes
Old   December 2, 2009, 12:57
Default Gradient Discretization CFX vs Fluent
  #1
New Member
 
Join Date: Jun 2009
Posts: 13
Rep Power: 8
Scott Nordsen is on a distinguished road
I am a traditional Fluent user trying to compare CFX runs to Fluent runs.

A few versions ago Fluent added an option under discretization for gradients

1) Green-Gauss Node based
2) Green-Gauss Cell based
3) Least Squares Cell based

I am having trouble finding help on 1) does CFX have similar options 2) what is CFXs default

If a simple answer exists (i.e. CFX only does #2 from the list above) that would be great.

Thanks in advance
Scott Nordsen is offline   Reply With Quote

Old   December 2, 2009, 17:46
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,797
Rep Power: 84
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
The approach in CFX is totally different to Fluent. Fluent is cell-centred so the gradients need to be calculated at the cell boundaries and hence the options you list. CFX uses a semi-Finite Element approach with shape functions. See the theory manual in the documentation for more details.
ghorrocks 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
CFX or FLuent? michelle CFX 7 June 10, 2014 07:38
Fluent and CFX Ale Main CFD Forum 7 July 30, 2008 21:14
Fluent Vs CFX, density and pressure Omer CFX 9 June 28, 2007 04:13
Reynolds Stress Model in Fluent Vs CFX Tim FLUENT 0 December 6, 2005 23:03
CFX vs STAR-CD and Fluent William CFX 20 October 29, 2001 14:55


All times are GMT -4. The time now is 07:22.