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

Error in AMG Solver: help please

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 30, 2002, 10:04
Default Error in AMG Solver: help please
  #1
madasu
Guest
 
Posts: n/a
Hi all

I am trying to simulate a periodic flow through a pipe. Materials used are air and brass. The properties of material considered are at 50 c. I gave all the necessary parameters before initializing the flow. I got the following error message when I try to iterate.

Error: divergence detected in AMG solver: pressure correction

Error Object: ()

can any body explain me what should i do to solve my problem. Thanks in advance

  Reply With Quote

Old   August 16, 2002, 07:14
Default Re: Error in AMG Solver: help please
  #2
Althea
Guest
 
Posts: n/a
Don't worry - this isn't too uncommon. Restart (by re-initialising) with the multigrid turned off (number of levels = 0). Once your solution is nice and stable (residuals falling smoothly) you can try reactivating multigrid. I would recommended saving before turning multigrid back on incase it becomes unstable again and you have to do a few more iterations with no multigrid.

Best wishes Althea
  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
Fluent IcePak - AMG Solver Russ FLUENT 1 December 25, 2013 08:26
Working directory via command line Luiz CFX 4 March 6, 2011 20:02
Divergence detected in AMG solver: pressure correction jimmer FLUENT 2 August 7, 2010 06:47
reverse flow and divergence in AMG solver MASOUD FLUENT 2 April 2, 2010 08:48
AMG versus ICCG msrinath80 OpenFOAM Running, Solving & CFD 2 November 7, 2006 15:15


All times are GMT -4. The time now is 16:02.