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Parallel, directly opposed rectangles with 30º triangular extensions

 

 

Function F3D_45(a,b,c) returns the view factor between two parallel rectangles with 30º triangular extensions.

 

Inputs:

a = height of rectangles [m] or [ft]

b = base of rectangles and triangles [m] or [ft]

c = distance between rectangles [m] or [ft]

 

Example: 

$UnitSystem SI Pa J K m radian

a=0.1 [m]

b=0.1 [m]

c=0.2 [m]

F=F3D_45(a,b,c)

{Solution: F=0.08397}

 

Reference: 

McAdam, D.W.; Khatry, A.K.; and Iqbal, M., 1971, "Configuration Factors for Greenhouses," Am. Soc. Ag. Engineers, vol. 14, no. 6, pp. 1068-1092, Nov.-Dec.