CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > CFX

CFX Linear Solution

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 4, 2014, 05:55
Default CFX Linear Solution
  #1
New Member
 
Simon
Join Date: Apr 2014
Location: Stuttgart, Germany
Posts: 22
Rep Power: 11
error404 is on a distinguished road
Hello,

what is the difference between "OK" and "ok" on the linear Solution?

You can show on the picture below.

OK_ok.PNG

thx

error404
error404 is offline   Reply With Quote

Old   April 4, 2014, 07:26
Default
  #2
Senior Member
 
JuPa's Avatar
 
Mr CFD
Join Date: Jun 2012
Location: Britain
Posts: 361
Rep Power: 14
JuPa is on a distinguished road
OK - this means the equation has converged very well.
ok - this means the equation has not converged as well as it should.
! - this means the equation has not converged, and the result should not be trusted.

It's all in the CFX guides.
JuPa is offline   Reply With Quote

Old   April 4, 2014, 08:44
Default
  #3
Senior Member
 
Join Date: Feb 2011
Posts: 495
Rep Power: 18
Antanas is on a distinguished road
Quote:
Originally Posted by RicochetJ View Post
OK - this means the equation has converged very well.
ok - this means the equation has not converged as well as it should.
! - this means the equation has not converged, and the result should not be trusted.

It's all in the CFX guides.
To be more precise:

* indicates that there was a numerical floating point exception and this resulted in the failure of the linear solvers.

F indicates that the linear solvers did not reduce the residuals (that is, the solution was diverging), but the linear solvers may carry on if the divergence is not catastrophic.

ok indicates that the residuals were reduced, but that the degree of reduction did not meet the specified criteria.

OK indicates that the specified convergence criteria for the reduction of residuals was achieved.
Antanas is offline   Reply With Quote

Old   April 4, 2014, 08:50
Default
  #4
New Member
 
Simon
Join Date: Apr 2014
Location: Stuttgart, Germany
Posts: 22
Rep Power: 11
error404 is on a distinguished road
Thanks for information
error404 is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
A turbulent test case for rhoCentralFoam immortality OpenFOAM Running, Solving & CFD 13 April 20, 2014 07:32
IdeasUnvToFoam Bug amp Fix benru OpenFOAM Bugs 42 November 13, 2009 08:59
Solution technique/ Mesh type/ Cell limit/ Multi-zone regions in CFX zandi CFX 5 April 10, 2009 02:06
Water pump OpenFOAM 15 ANSYS CFX 110 comparation waynezw0618 OpenFOAM Running, Solving & CFD 39 March 5, 2009 13:57
how to make a CFX solution NITIN DEWANGAN CFX 2 August 8, 2008 09:06


All times are GMT -4. The time now is 19:55.