SECTION C
Factors From Finite Areas to Finite Areas
C-101: Parallel opposed cylinders of unequal radius and equal finite length.
Reference: Juul (1982)
Definitions:
R = r1/r2; L = l/r2; C = c/r2
Governing Equations: Use A-E in regions noted on chart below
Tabulated Values are obtained by numerical integration. The view factors in the blank regions may be calculated by the equations with an error less than 1%.
R
L
(C - R - 1) =
0
0.5
1.0
2.0
0
0.5
0.500
0.1037
0.0446
1.0
0.1526
0.0772
5.0
F12 = B x E
10.0
50.0
.1
0.5
0.3453
0.0933
0.0415
1.0
0.1387
0.0721
5.0
F12 = A x C
10.0
50.0
1.0
0.5
0.1440
0.0517
0.0264
1.0
F12 = A x C
5.0
10.0
0.1813
50.0
0.1834
10.0
0.5
0.0233
0.0104
0.0062
0.0032
1.0
0.0276
0.0167
0.0111
0.0062
5.0
0.0344
0.0288
0.0246
0.0186
10.0
F12 = A x D
0.0229
50.0