Problem 2805. Radiation Heat Transfer — View Factors (1)
View factors (aka configuration factors) are utilized in some radiation heat transfer models to estimate heat transfer rates between surfaces. In particular, the thermal energy leaving a given surface is applied to other surfaces, as appropriate, based on how much the hot surface "sees" the other surfaces. As such, view factors are purely geometrical in nature. A range of view factor formulae are available here.
For this problem, calculate the view factor from surface 1 to surface 2 (F_1-2) for two directly opposed, infinitely long plates of the same finite width given the height, which may be a vector of values:


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Can't access to http://www.thermalradiation.net/tablecon.html
It's back up and running. It was down for about a day. I'm not sure why, though. I recall accessing this site about a decade ago, and I imagine that it will be around for decades to come, due to its usefulness.
Thank you for the update.
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