CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

3D Preconditioning

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

LinkBack Thread Tools Display Modes
Old   July 12, 2006, 12:37
Default 3D Preconditioning
Posts: n/a
Dear Friends,

I am working on 3D preconditioning for Euler flows and am faced with a small problem. For flow past ONERA M6 wing, and M<=0.001, I find that the velcoity and pressure contours are corrupt, right from the first iteration. There is no such problem for M>0.001. In fact, I get a good solution at M=0.01. The preconditioner works well at high M. I make use of Weiss-Smith preconditioner and have validated it extensively in 2D. Can anyone who has worked in 3D preconditioning give some suggestions ?


  Reply With Quote


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
Roe implement about preconditioning ricklee Main CFD Forum 7 July 7, 2006 06:14
Re: Preconditioning for moving grids ganesh Main CFD Forum 0 April 6, 2006 06:18
Preconditioning in 3D ganesh Main CFD Forum 0 February 28, 2006 07:39
implementing preconditioning clifford bradford Main CFD Forum 0 October 19, 2000 16:03
local preconditioning Manish Jaiman Main CFD Forum 3 May 1, 2000 08:31

All times are GMT -4. The time now is 12:53.