CFD Online Logo CFD Online URL
Home > Forums > CFX

what exactly is the Courant Number ???

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

LinkBack Thread Tools Display Modes
Old   July 26, 2006, 13:09
Default what exactly is the Courant Number ???
CFX Novice
Posts: n/a
Please, could you explain what is the Courant Number? I tried to find it in CFX-doc, but there is mentioned only with timestem adaptation. But I'd lik to understand it more. So is it has any math. definion? Thanks in advance

What is my problem - I hav a hard problem with transident run (pointed into time-average solutin, I don't care about the unsteady effect) but my courant number varies from 150 to 600 within a few timesteps. Could be it problem with convergence? Thanks

I'm using SST, unstructured mesh, Re 7.5e7 and TS is 0.5 s
  Reply With Quote

Old   July 26, 2006, 13:40
Default Re: what exactly is the Courant Number ???
Posts: n/a
Hi Novice,

I recommend you to write "courant number" in search, and you will find necessary information about it. If you are using cfx, and you are interested in time-averaged solution, you dont need to worry about it.

  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
IcoFoam unstability, courant number gets large! vivien OpenFOAM 10 July 23, 2013 12:48
Courant number fireman FLUENT 4 October 4, 2010 12:54
LES near wall model & courant number kasim CFX 5 March 16, 2008 19:23
IcoFoam parallel woes msrinath80 OpenFOAM Running, Solving & CFD 9 July 22, 2007 02:58
Courant number calculation - unsteady flow Kuba FLUENT 0 November 8, 2005 23:44

All times are GMT -4. The time now is 07:53.