F3D_35

Parallel cylinders of finite and equal lengths

Function f3d_35(r_1, r_2, L, s) returns the view factor between two aligned cylinders of finite but equal length.

Inputs:
r_1 and r_2 = radii of the cylinders [m] or [ft]
L = length of the cylinders [m] or [ft]
s = distance between the cylinders [m] or [ft]

Example:
$UnitSystem SI Pa J K m
r_1=0.1 [m]
r_2=0.2 [m]
L=0.2 [m]
s=0.1 [m]
F=f3d_35(r_1,r_2,L,s)

{Solution:
F=0.1028 }

Reference:
Juul, N.H., "View Factors in Radiation Between Two Parallel Oriented Cylinders of Finite Lengths," Journal of Heat Transfer, Vol. 104, pp. 384-388, (1982).