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

ODD-EVEN DECOUPLING

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

Like Tree1Likes
  • 1 Post By agg

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   October 23, 2007, 06:26
Default ODD-EVEN DECOUPLING
  #1
Al
Guest
 
Posts: n/a
Dear all, could someone explain to me the odd even decoupling problem? What it is When it can be found (compressible, incompressible) On which grids Is lumping the only solution? Thank you Al
  Reply With Quote

Old   October 25, 2007, 11:58
Default Re: ODD-EVEN DECOUPLING
  #2
agg
Guest
 
Posts: n/a
ODD-EVEN DECOUPLING is seen for pressure solution in incompressible flows. This is a numerical issue caused by the way derivatives are computed say on a finite difference grid where pressure and velocities are calculated at grid nodes. You can read more about it in the book "Numerical Heat Transfer" by SV Patankar. To avoid this one usually uses a staggared grid where velocites are defined on cell faces and pressure at the cell center.
ugurtan666 likes this.
  Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
extrudeMesh - odd behaviour grjmell OpenFOAM 0 September 20, 2011 09:41
help the Gradient odd in zone interface shaoxianjun FLUENT 0 October 15, 2009 23:17
Odd Even Decoupling Validation Sachin Main CFD Forum 1 October 8, 2005 07:58
Odd-even decoupling of cells Peter Main CFD Forum 2 June 1, 2001 14:19
pressure velocity decoupling Frank Muldoon Main CFD Forum 4 February 4, 1999 12:25


All times are GMT -4. The time now is 07:01.