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

Discrete Ordinate Fluent Radiation Intensity/Heat Flux

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 26, 2012, 17:17
Default Discrete Ordinate Fluent Radiation Intensity/Heat Flux
  #1
New Member
 
Join Date: Nov 2012
Posts: 1
Rep Power: 0
kozzney is on a distinguished road
Hi, I've been a long time lurker/searcher on these forums but I can't find a straight answer anywhere to my question (which I think should be simple...):

How do I see/get-the-data-into-a-spreadsheet the radiation heat flux distribution and radiation intensity distribution (for each direction) in my 2D plane-parallel discrete ordinates problem?

I'm working on a project for school and this is the first time I've ever used ANSYS, but I'm fairly certain I have set up and solved the discrete ordinates method correctly; I just can't get the results I need... I can plot and retrieve incident radiation, G, in a spreadsheet, but I need the intensity and heat flux distributions.

I have 2 plane-parallel black walls, separated by a 1cm distance, with that space filled with a participating solid media. I made the walls 10cm long, and then defined a periodic boundary condition on the sides.

Thanks for any help/advice, if any more info is needed, let me know!
kozzney is offline   Reply With Quote

Old   December 4, 2012, 05:30
Default
  #2
Senior Member
 
Rami Ben-Zvi
Join Date: Mar 2009
Posts: 155
Rep Power: 17
Rami is on a distinguished road
Hi kozzney,
  1. In order to get the surface heat flux of certain boundaries, you should plot them using the XY Plot menu, selecting Wall fluxes... for the Y axis Function. Define the specific function below (e.g., Radiation Heat Flux or otherwise), choose the X Axis Function and the desired BCs (note that for the Curve Length option for the x axis, you can choose a single BC at a time) and check the Write to File option. Click Write... and define the file name. You will get a text file that is readily imported to a spreadsheet.
  2. AFAIK, you have no direct access to the intensity field. Maybe this can be done by UDFs. Check the manuals.
  3. I referred above to the DO model. It may be different with other radiation models (S2S, DTRM,...).
Rami is offline   Reply With Quote

Reply

Tags
ansys, discrete ordinates method, dom, fluent, heat flux

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
Macros for discrete ordinate, non gray model yashmash FLUENT 1 March 19, 2012 03:13
Radiation model-Discreate ordinate Method MANOJKUMAR FLUENT 0 October 20, 2005 02:15
Radiation flux to the wall surface Jason Phoenics 1 May 26, 2004 02:13
transient heat flux in FLUENT Jayanti Sinha Main CFD Forum 0 November 6, 1999 19:43
Fluent incident radiation problem Michael Schwarz Main CFD Forum 0 October 21, 1999 06:56


All times are GMT -4. The time now is 10:02.