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

energy residuals (NaN)

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

Reply
 
LinkBack Thread Tools Display Modes
Old   February 27, 2015, 06:19
Default energy residuals (NaN)
  #1
cdh
New Member
 
Chris
Join Date: Oct 2014
Posts: 5
Rep Power: 2
cdh is on a distinguished road
Hey,
I'm calculating a coal combustion with fluent, but I noticed that there are no Residuals plotting for energy.
The solver just writes a nan instead of an Number. The energy equation is enabled so I have no clue why it won't calculate.
Does anyone has an idea?

Thanks
cdh is offline   Reply With Quote

Old   March 2, 2015, 06:12
Default
  #2
cdh
New Member
 
Chris
Join Date: Oct 2014
Posts: 5
Rep Power: 2
cdh is on a distinguished road
No one? I also noticed that the energy residuals show up as soon as I disable the species transport.
I'm really confused
cdh is offline   Reply With Quote

Old   March 5, 2015, 07:05
Default
  #3
cdh
New Member
 
Chris
Join Date: Oct 2014
Posts: 5
Rep Power: 2
cdh is on a distinguished road
Ok never mind, the problem seems to be with the UDF's for the absorption.
cdh is offline   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
Why simulation results showing "nan" values? Sargam05 OpenFOAM 4 September 10, 2012 12:37
Cells with t below lower limit Purushothama CD-adapco 2 May 31, 2010 21:58
ATTENTION! Reliability problems in CFX 5.7 Joseph CFX 14 April 20, 2010 15:45
Unfamiliar Error coops OpenFOAM Running, Solving & CFD 7 October 3, 2006 13:54
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 23:52.