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

computational domain & boundary condition

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 8, 2006, 20:30
Default computational domain & boundary condition
  #1
novice
Guest
 
Posts: n/a
Dear all,

I have simulated a turbulent flame in a furnace and have obtained all the flow properties of interest. The height of the furnace is 1 meter and its diameter is 0.15 m. Instead of simulating the full domain of furnace, I used the computational domain only until axial position of 0.6 m, so I had 0.6 m x 0.15 m domain and I could reduce the computational time (this is just a trial and tentative). I used outflow boundary condition at h=0.6 m.

After comparing the computation & experiment result, I had a flame height (flame length) around 0.4 m, slightly lower than the experimental flame which is 0.47 m high.

Could the discrepancy be attributed to the 'cutting' of furnace height or could it be due to inappropriate outflow boundary condition, or both?

Thanks for the help,

novice
  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
Freestream boundary condition: incompressible, circular domain (o-grid) lordvon FLUENT 0 April 29, 2011 12:47
2d irregular grid Remy Main CFD Forum 1 December 22, 2008 05:49
Airfoil boundary condition Frank Main CFD Forum 1 April 21, 2008 19:36
Pressure Boundary Condition Matt Umbel Main CFD Forum 0 January 11, 2002 11:06
The Boundary Condition about the Flat Plate boing Main CFD Forum 1 January 6, 2002 17:53


All times are GMT -4. The time now is 18:56.