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Infinite cylinder to cylinder

Function F2D_4(r, s) provides the view factor from an infinitely long cylinder to a parallel infinitely long cylinder of identical diameter.

Inputs:

r is the radius of the cylinder [m or ft]

s is the distance between the cylinders, measured from the closest points on the cylinders' surfaces [m or ft]  

Example:  

$UnitSystem SI K Pa J deg

r=0.2 [m]

S=0.5 [m]

F=F2D_4(r, s)

{Solution: F=0.07198}

Reference:  Siegel and Howell, Thermal radiation heat transfer, 4th edition, p.847.

Index