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

MRFSimpleFoam convergence problems

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

Reply
 
LinkBack Thread Tools Display Modes
Old   March 17, 2012, 06:29
Default MRFSimpleFoam convergence problems
  #1
Senior Member
 
Attesz's Avatar
 
Attesz
Join Date: Mar 2009
Posts: 355
Rep Power: 8
Attesz is an unknown quantity at this point
Hi all,

I'm doing a complicated low-fan simulation in OF 2.1. with MRFSimpleFoam. As I'm getting convergence problems, I'm thinking about two things to avoid it:
1. bad initial results - how can set the rotating field for U in the rotor zone?
2. starting at a much lower rotational velocity and ramp it up by hand. i'm thinking about to use the changeDictionary tool

Best,
Attila
__________________
CFD= Cleverly Formatted Data
Attesz is offline   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
Gas-liquid vertical separator, problems with convergence juliom Main CFD Forum 0 October 5, 2011 20:20
Weak rotational flow - Convergence Problems Daggemann FLUENT 1 May 8, 2009 09:45
NACA0012 Convergence Problems StudentAndrew CFX 6 November 21, 2005 07:49
Convergence problems Simone CD-adapco 5 June 29, 2005 10:48
Convergence problems Chetan FLUENT 3 April 15, 2004 19:13


All times are GMT -4. The time now is 17:46.