# Solution diverges

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

 November 30, 2012, 07:54 Solution diverges #1 Senior Member     Meimei Wang Join Date: Jul 2012 Posts: 494 Rep Power: 9 Hi, May I ask what does it mean by 'solution has diverged'? Usually how to avoid this? Thanks. __________________ Best regards, Meimei

 November 30, 2012, 08:20 #2 Senior Member   Chris DeGroot Join Date: Nov 2011 Location: Canada Posts: 388 Rep Power: 9 If a solution diverges that means the iterative process that is supposed to drive the initial guess of the solution to the actual solution has failed and instead the solution has been driven further away from the actual solution. There are many things that could cause this including inconsistent specification of physics/boundary conditions or not applying enough relaxation to stabilize the numerical method. Generally it means your problem is ill-posed in some way or the iterative method is unstable in some way. Crank-Shaft likes this.

December 4, 2012, 00:48
#3
New Member

kullimanali
Join Date: Dec 2012
Posts: 13
Rep Power: 7
Quote:
 Originally Posted by Anna Tian Hi, May I ask what does it mean by 'solution has diverged'? Usually how to avoid this? Thanks.
this means ur solution is not correct, convergence means there is acceptable difference between previous and current solution, it depends upon how much u have set residual and divergence means there is large difference the residual

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post mgdenno OpenFOAM 4 September 13, 2011 12:58 bipulsaha FLUENT 1 July 6, 2011 07:51 nakor FloEFD, FloWorks & FloTHERM 0 April 22, 2011 04:34 varun Siemens 1 January 11, 2005 04:10 Seb Main CFD Forum 13 May 22, 2001 13:37

All times are GMT -4. The time now is 08:12.