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


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

LinkBack Thread Tools Display Modes
Old   August 22, 2002, 14:28
Default convergence
Posts: n/a
I am solving transient problems with semi-implicit scheme.But my codes is always divergent at one instance.It is possible that at that time, the physical quantitity changes dramatically.To solve this problem , I tried to decrease the time step,but after my time step decreased from 1e-11 to 1e-12, the problem still exists. Since my codes need to run unitill t=1e-5 second, I cannot decrease the time step any more. I also tried to use SUR, but I think the effect is same as decreasing the time step. Is it right? Can anyone give me some advice to solve this problem.

thanks !
  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
Convergence Centurion2011 FLUENT 31 October 25, 2016 04:54
problem with Min/max rho tH3f0rC3 OpenFOAM 7 February 23, 2013 06:37
Force can not converge colopolo CFX 13 October 4, 2011 22:03
Convergence of CFX field in FSI analysis nasdak CFX 2 June 29, 2009 01:17
Defect correction and convergence ganesh Main CFD Forum 4 June 30, 2006 14:20

All times are GMT -4. The time now is 13:55.