CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Continuity residual

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

Like Tree2Likes
  • 2 Post By Greg Perkins

LinkBack Thread Tools Display Modes
Old   March 21, 2002, 17:55
Default Continuity residual
Posts: n/a
hi every one :

I have a little problem with the conticuity residual. I m modelling a 3d natural convection problem and it seems not easy reduce this residual in particular. I am using linear aproximation of the density like force source in the momentum equation, and i m not sure what this continuity residual means.

I could not find this explanation in the manuals .

Thank you in advance.

  Reply With Quote

Old   March 22, 2002, 03:03
Default Re: Continuity residual
Jin-Wook LEE
Posts: n/a
You can be advised by the Fluent's 'HELP' option.

Help --> Index --> Definition of residuals.

Sincerely, Jinwook

  Reply With Quote

Old   March 22, 2002, 07:21
Default Re: Continuity residual
Greg Perkins
Posts: n/a
I've found that often problems with continuity stem from a poor mesh. Making a better mesh often helps the continuity equation residuals.

(though I've done very little natural convection..)

An easy way to check is to use grid adaption on your existing grid in regions where residuals are high. If this works, you can then go back and create a better starting grid. I also suggest using hexas or quads if possible in preference to tets and tris.

behnam87 and kamyab like this.
  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
How to write k and epsilon before the abnormal end xiuying OpenFOAM Running, Solving & CFD 8 August 27, 2013 15:33
Orifice Plate with a fully developed flow - Problems with convergence jonmec OpenFOAM Running, Solving & CFD 3 July 28, 2011 05:24
Extrusion with OpenFoam problem No. Iterations 0 Lord Kelvin OpenFOAM 6 April 12, 2011 11:24
Differences between serial and parallel runs carsten OpenFOAM Bugs 11 September 12, 2008 11:16
Could anybody help me see this error and give help liugx212 OpenFOAM Running, Solving & CFD 3 January 4, 2006 19:07

All times are GMT -4. The time now is 08:24.