CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

Energy equation convergence problem

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

Reply
 
LinkBack Thread Tools Display Modes
Old   August 27, 2003, 13:09
Default Energy equation convergence problem
  #1
Reza
Guest
 
Posts: n/a
I have asked this before but have not found a good answer. I have to solve the energy equation along with the momentum and continuity equation for a solidification problem. The problem is that at certain points the energy equation does not converge. Also I am running a multi-component mixture so I have mushy zones and it is impossible to use the expressions used in the literatue for updating the enthalpy. What I am doing at this moment is updating the enthalpies in the source term of energy equation based on the availble temperature. Also I have to under-relax the temperature at each iteration. But for some strange reason the convergence fails after some time. I have run the code for single phase and it was ok. Can anybody give me a hint or help me with some ideas?

Thank you for your considerations.
  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
Calculation of the Governing Equations Mihail CFX 7 September 7, 2014 06:27
Convergence problem in energy equation majidtaleby FLUENT 0 June 22, 2010 16:32
History Convergence: Graphical problem Bedotto NUMECA 1 March 18, 2010 00:40
CONVERGENCE PROBLEM - oil boiler MM FLUENT 1 February 15, 2007 06:24
how to disable energy equation for for non-newton yueroo FLUENT 2 April 3, 2001 22:11


All times are GMT -4. The time now is 17:59.