CFD Online Logo CFD Online URL
Home > Forums > FLUENT

On the residuals.

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

LinkBack Thread Tools Display Modes
Old   January 12, 2005, 22:24
Default On the residuals.
Posts: n/a
During the simulation, I find the residuals for continuity equation, momentum equation and energy equation doní»t drop, but go up slowly. I doní»t know why the phenomenon appears and what I should do. Give me some advice, please. Thank you.
  Reply With Quote

Old   January 13, 2005, 01:01
Default Re: On the residuals.
Posts: n/a
Change your Under-relaxation factors in your Solver menu.

Otherwise make sure you are not trying to model an unsteady case using a steady-state solver.Also check your mesh for skew cells and high-aspect ratios.

As long as your residuals go down...thats still good.
  Reply With Quote

Old   January 13, 2005, 07:13
Default Re: On the residuals.
Posts: n/a
  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
Tutorial of how to plot residuals ! wolle1982 OpenFOAM Running, Solving & CFD 123 August 25, 2015 03:15
what to monitor besides residuals? franzdrs FLUENT 5 March 21, 2013 04:59
Mesh size and solver residuals... Scott CFX 5 December 15, 2008 18:10
Convergence - scaled vs unscaled residuals HS FLUENT 1 November 7, 2005 06:45
residuals Karl CFX 2 June 24, 2003 23:13

All times are GMT -4. The time now is 18:36.