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Offset Parallel Rectangles



Function f3d_14(x1,x2,y1,y2,a1,a2,b1,b2,z) returns the view factor from area 1 to area  2 of two arbitrarily-located finite rectangles that are oriented perpendicular to each other.

Inputs:
x1, x2, y1, y2, a1, a2, b1, b2, and z are the lengths shown in the figure in [m or ft]

Note: The input values must all be greater than 0!  

Example:  
$UnitSystem SI K Pa J rad
x1=0.1 [m]
x2=0.2 [m]
y1=0.1 [m]
y2=0.2 [m]
a1=0.1 [m]
a2=0.2 [m]
b1=0.1 [m]
b2=0.2 [m]
z=0.05 [m]
F=f3d_14(x1,x2,y1,y2,a1,a2,b1,b2,z) 

{Solution: F=0.4153}


Reference:  Howell, http://www.me.utexas.edu/~howell/sectionc/C-13.html

View Factor Index