CFD Online Logo CFD Online URL
Home > Forums > FLUENT

simulate radiation absorption within a porous zone

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

LinkBack Thread Tools Display Modes
Old   October 5, 2001, 08:37
Default simulate radiation absorption within a porous zone
Posts: n/a
I'm simulating a cathalytic burner were the combustion takes place on an outer net, shaping a cylinder. I also have an inner net to get a better distribution of the fuel flow over the outer net. the radiation is going to make the inner net very hot through radiation from the outer net.

I asking: how do i simulate radiation absorption on the net, when i use a porous zone to simulate the net?

(is it possible?)

  Reply With Quote

Old   October 8, 2001, 12:19
Default Re: simulate radiation absorption within a porous
Evan Rosenbaum
Posts: n/a
I don't think you can do what you want. In FLUENT, a porous medium is just a fluid region with an extra momentum sink term. It is completely ignored by the radiation computations, I think.
  Reply With Quote

Old   October 9, 2001, 04:26
Default Re: simulate radiation absorption within a porous
Greg Perkins
Posts: n/a
Yes you can't do this directly in Fluent.

I would also like to do this. I expect to have to add a udf source term to the p1 radiation model to account for the absorption. If that doesn't work, you can develop your own p1 type model using user defined functions - not an easy thing though.

You could also modify the energy equation for the Rosseland model.

I don't think it will be possible to make the required modifications to either the DTRM or DO model to account for the porous zone.

If you have any luck with the udfs please let me know.

  Reply With Quote


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
Modelling Combustion in Porous Zone tanjinjack FLUENT 2 September 26, 2016 04:10
Radiation at interface between fluid and porous domain Hitch8 CFX 19 April 20, 2015 06:24
Problem in running ICEM grid in Openfoam Tarak OpenFOAM 6 September 9, 2011 17:51
Problem in IMPORT of ICEM input file in FLUENT csvirume FLUENT 2 September 9, 2009 01:08
Fluent incident radiation problem Michael Schwarz Main CFD Forum 0 October 21, 1999 05:56

All times are GMT -4. The time now is 04:44.