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

Anyone know about this code?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 24, 2003, 05:20
Default Anyone know about this code?
  #1
Chan
Guest
 
Posts: n/a
Hi,

I've come across this code called OVERFLOW. It seems that places like NASA are using it. Would anyone be familiar with it?

Thanks in advance
  Reply With Quote

Old   September 24, 2003, 13:45
Default Re: Anyone know about this code?
  #2
cfd dude
Guest
 
Posts: n/a
It's a 3D structured grid Navier-Stokes solver for overset meshes (Chimera grids). Originally developed at NASA Ames and used primarily for external aerodynamics applications.
  Reply With Quote

Old   September 24, 2003, 19:17
Default Re: Anyone know about this code?
  #3
mehduri
Guest
 
Posts: n/a
hi, is it different than fluent wit more or less feature and what do u mean by overset meshes.
  Reply With Quote

Old   September 24, 2003, 22:07
Default Re: Anyone know about this code?
  #4
Michael
Guest
 
Posts: n/a
Fluent implements a remeshing scheme for moving body problems where by the mesh is first streched with a spring analogy and then regions are subsequently remeshed based on criteria such as allowable cell aspect ratio.

Overset / Chimera Meshes are very different. CFD-Fastran as well as Overflow both emply this method for moving body problem. Basically there are two meshes. Both the meshes are staic in that the mesh is never deformed, however one of the meshes can move around rigidly. This mesh contains cells in the immediate surrounding of the body in motion and follows the body around as it moves. The other grid is larger and covers the complete domain. The wall boundaries in the smaller grid are used as a stencil to blank out cells in the larger grid. The result is a solution on both the grids. The smaller grid containts detailed flow such as BL effects. The larger grid is less precise in the region of the moving body but the global effects of the bodies in motion can be accounted for on this grid.
  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
The FOAM Documentation Project - SHUT-DOWN holger_marschall OpenFOAM 242 March 7, 2013 13:30
How to make code run in parallel? cwang5 OpenFOAM Programming & Development 1 May 30, 2011 04:47
Open Source Vs Commercial Software MechE OpenFOAM 28 May 16, 2011 11:02
Small 3-D code Zdravko Stojanovic Main CFD Forum 2 July 19, 2010 10:11
public CFD Code development Heinz Wilkening Main CFD Forum 38 March 5, 1999 12:44


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