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

 August 5, 2013, 16:43 I need help about radiation (surface to surface- s2s model) #1 New Member   miyage Join Date: Aug 2013 Posts: 3 Rep Power: 12 hi everybody, I want to ask a problem about radiation. I will compute a problem which includes radiation heat transfer effect. but I want to calculate view factor, sometimes calculetes correctly sometimes wrong. have you any experience about this? how can I calculate true value of view factor everytime? which factors do depends view factor? I am waiting your replies.

 August 5, 2013, 22:39 #2 Senior Member   François Grégoire Join Date: Jan 2010 Location: Canada Posts: 392 Rep Power: 17 Hi, Maybe you need to read some heat transfer book in order to understand the s2s model and the view factors. It's 100 times more efficient than asking on the forum. e.g. http://ca.wiley.com/WileyCDA/WileyTi...ilter=TEXTBOOK

 October 1, 2014, 04:02 #3 Member   Al Join Date: Jul 2013 Location: Japan Posts: 47 Blog Entries: 3 Rep Power: 13 See also : chapter 13.3.7 of Fluent 6.3 Radiation Model Theory pag 995 (http://aerojet.engr.ucdavis.edu/flue...f-download.htm) The surface-to-surface radiation model can be used to account for the radiation exchange in an enclosure of gray-diﬀuse surfaces. The energy exchange between two surfaces de- pends in part on their size, separation distance, and orientation. These parameters are accounted for by a geometric function called a “view factor”. [from Fundamentals of Heat and Mass Transfer Incropera chapter 13.1 pag812] The view factor F_ij is defined as the function of the radiation leaving surface "i" that is intercepted by surface "j".

March 31, 2021, 00:00
#4
New Member

noorlina
Join Date: Apr 2020
Location: malaysia
Posts: 7
Rep Power: 6
Hi dear,

I tried to open the link but it cannot work. Could you please give the title of the book?

Quote:
 Originally Posted by macfly Hi, Maybe you need to read some heat transfer book in order to understand the s2s model and the view factors. It's 100 times more efficient than asking on the forum. e.g. http://ca.wiley.com/WileyCDA/WileyTi...ilter=TEXTBOOK