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

Coal with EBU

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

Reply
 
LinkBack Thread Tools Display Modes
Old   September 13, 2001, 07:54
Default Coal with EBU
  #1
Magnus
Guest
 
Posts: n/a
Hi!

I have encountered a problem when running the coal with EBU model in CFX4.3. Every time I run it the solver aborts the calculation after some number (>2) of particle itegrations without any error message. If anyone might have an idea about what my problem can be please respond.

Cheerio!
  Reply With Quote

Old   September 13, 2001, 17:19
Default Re: Coal with EBU
  #2
Jan Rusaas
Guest
 
Posts: n/a
Hi' When does it stop, during the flow or particle calculation. Have you checked the output file, sometimes it is written there why it is stopped.

Jan
  Reply With Quote

Old   September 14, 2001, 01:34
Default Re: Coal with EBU
  #3
Magnus
Guest
 
Posts: n/a
Thank you Jan for your quick respond. It seems like I might have already found the cause to my problem. You see, I am simulating a gasification reactor for black liquor in a 2D axisymmetric model and I have just found out that I have, by misstake, set a angular velocity component for the coal particles. This might have been the cause to why the flow calculation stops (no message in *.fo) in between two particle calculations? The thing that confuses me is that the calculations did not stop at the first particle claculation!

Maybe you (or someone else) can help me with another problem? I have trouble when using USRPBC and COAL EBU model. It seems like the code overwrites my particle BCs (set in USRPBC) and stops the calculation after the first flow calculation? I have no trouble with a isothermal (no combustion) run with the same *.f file. Is there something that must be added when I use USRPBC with the COAL EBU model?

Have a good day,

Magnus
  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
Coal Combustion simulation Yogesh FLUENT 1 April 29, 2014 08:44
Coal combustion and ash reaction kinetics sega Fluent UDF and Scheme Programming 0 January 21, 2010 09:05
Clean Coal Projects Clean Coal Projects Main CFD Forum 0 March 2, 2009 04:57
Coal gasification-problem with convergence Claudia FLUENT 7 November 8, 2005 03:08
moisture in coal combustion Sheng FLUENT 3 June 15, 2003 19:43


All times are GMT -4. The time now is 01:10.