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

entropy fix

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 22, 2004, 13:11
Default entropy fix
  #1
autofly
Guest
 
Posts: n/a
the entropy fix is necesary for Roe-fds in supersonic flow.Harten' YEE'S formula is popular and used widely. but every author do some modification to it. such as the turn-on factor epslon. lamda1= U,lamda2=U-C lamda3=U+C, lamda1,which is modified with a smallest epslon only in stagment region.on contrast, lamda2,lamda3 is modified with epslon = eps*max(abs(lamda3),abs(lamsa2)). now i meet some other methods to define the epslon, such LAURA code's method.I want to get some information about the method which is used in CFL3DV6, because i get some information about it's entropy fix result in cfl3d web http://cfl3d.larc.nasa.gov/Cfl3dv6/c...w.html#precond. i want to get the detailed method of cfl3dv6, because of its easyness
  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
Entropy jump across shocks Dave Main CFD Forum 8 March 12, 2008 11:21
roe solver with entropy fix mehdi Main CFD Forum 1 February 26, 2006 06:36
entropy fix for Riemann problem vivek kumar Main CFD Forum 3 August 31, 2005 07:47
limiter & entropy fix of Roe scheme kei-tee Main CFD Forum 21 May 26, 2003 05:50
entropy fix and subiteration zhaohuiyong Main CFD Forum 3 April 12, 1999 05:51


All times are GMT -4. The time now is 06:32.