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

Mixed order pressure-velocity approximations

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 16, 2009, 09:54
Default Mixed order pressure-velocity approximations
  #1
jwm
New Member
 
john mckelliget
Join Date: Mar 2009
Posts: 7
Rep Power: 8
jwm is on a distinguished road
I was wondering if anyone had any experience using mixed order pressure velocity formulations. Specifically, quad elements with bi-linear interpolation for velocity (stored at nodes) and piecewise constant for pressure (stored in the elements).

It seems to me that this is a convenient way to implement "staggered grids" on unstructured meshes, and I have always found that staggered grids are more stable than collocated (P and V at the same nodes) - at least for orthogonal meshes.
jwm 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
4th order accurate pressure poisson solver srinivas Main CFD Forum 4 February 28, 2009 06:23
Viscous term approximations cfd_newbie Main CFD Forum 0 November 28, 2005 21:23
magnitude order of Cp (pressure coeff.)? Alexandre FLUENT 1 October 25, 2005 20:37
WALL SHEAR STRESS APPROXIMATIONS Andy Main CFD Forum 0 August 25, 2004 10:10
ONE-SIDED DIFFERENCE APPROXIMATIONS Andy Main CFD Forum 0 August 24, 2004 18:28


All times are GMT -4. The time now is 12:31.