Consider the following grooves, each of width W, that have been machined from a solid block of material.

(a) For each case obtain an expression for the view factor of the groove with respect to the surroundings outside the groove.

(b) For the V groove, obtain an expression for the view factor F12, where A1 and A2 are opposite surfaces.

(c) If H = 2 W in the rectangular groove, what is the view factor F12?

Sem circular groove Rectangular Vgroove groove