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

Induced drag from N-S flow-field

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

Reply
 
LinkBack Thread Tools Display Modes
Old   January 15, 2004, 19:10
Default Induced drag from N-S flow-field
  #1
Jarmo Monttinen
Guest
 
Posts: n/a
Someone here must have done this before...

I am trying to compute the induced drag of a wing from N-S solution. The Trefftz-plane analysis gives much too low numbers, IMO due to the coarse grid far behind the model. I have tried the approach of Schmitt and Destarac (AIAA paper 98-0137) and that of Giles and Cummings (J. Aircraft 36(2):357-373, 2 papers) in the near field, within 50% chord or so behind the wing. These also give values that seem a bit too low.

But, both of the papers I mentioned mainly deal with Euler eqns and the authors do acknowledge that "the extension to viscous cases needs work".

SO, the question is, has either one of these methods been extended to N-S cases, or is there another approach someone could suggest?

Thanks.

-- Jarmo
  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
how 2 freeze 1 phase flow field & start lagrangian KK CFX 5 February 14, 2008 17:48
Buoyancy induced flow, horizontal cylinder opnd FLUENT 5 October 26, 2007 04:25
Nozzle Induced Flow John Hayes CFX 2 July 11, 2002 13:24
Inviscid Drag at subsonic, subcritical Mach # Axel Rohde Main CFD Forum 1 November 19, 2001 13:19
Flow visualization vs. Calculated flow patterns Francisco Saldarriaga Main CFD Forum 1 August 2, 1999 23:18


All times are GMT -4. The time now is 10:50.