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Parallel, directly opposed rectangles with 45º triangular extensions
Function f3d_46(a,b,c) returns the view factor between two parallel rectangles with 45º 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_46(a,b,c)
{Solution:
F=0.09684}
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.