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

Staggered or Collocated grid?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 2, 2010, 23:06
Default Staggered or Collocated grid?
  #1
New Member
 
Tanay Deshpande
Join Date: Aug 2010
Posts: 20
Rep Power: 6
Tanay is on a distinguished road
Dear all,
I'm a beginner in coding CFD algorithms using C++. I'm currently trying to understand OpenFOAM. Can anyone please tell me if OpenFOAM uses a staggered or a collocated grid arrangement? Does it depend on the Peclet no.? And is SIMPLE used in OpenFOAM?
Tanay is offline   Reply With Quote

Old   September 3, 2010, 03:46
Default
  #2
Senior Member
 
akidess's Avatar
 
Anton Kidess
Join Date: May 2009
Location: Delft, Netherlands
Posts: 919
Rep Power: 17
akidess will become famous soon enough
Grid is collocated, and usually simple is used for steady state and piso for transient problems.
akidess is offline   Reply With Quote

Old   September 11, 2012, 12:43
Default collocated grid in openfoam
  #3
Member
 
Farshad
Join Date: Oct 2010
Posts: 76
Rep Power: 6
Farshad_Noravesh is on a distinguished road
Hi,
If Grid in openfoam is collocated then is the interpolation biased or just a simple interpolation?
Please correct me if i am wrong: staggered mesh is not used in openfoam.
by the way where the dissipation method of rhie is implemented in openfoam and is it possible to use time dissipation like Wall et al 2002 ?
Thanks to K.Mahesh method of collocated finite volume that it has very small energy conservation error.

Kind Regards,

Farshad
Farshad_Noravesh is offline   Reply With Quote

Reply

Tags
collocated, simple, staggered

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
SIMPLE on collocated grid dshawul Main CFD Forum 1 August 17, 2010 21:31
Staggered Vs Collocated grid Sas Main CFD Forum 6 June 21, 2007 10:34
Higher order discretization on staggered grid Chandra Shekhar Main CFD Forum 9 January 27, 2005 17:31
Collocated or staggered grid? mspilot FLUENT 0 October 21, 2003 22:02
Combustion Convergence problems Art Stretton Phoenics 5 April 2, 2002 05:59


All times are GMT -4. The time now is 23:10.