Factors From Finite Areas to Finite Areas
C-49: Annular disk to coaxial truncated cone; cone can be convergent (+α) or divergent (-α).
Reference: Naraghi and Chung
H = h/r1; R = r2/r1; A = [H2 + (1 + R + Htanα)2]1/2; B = [H2 + (1 - R - Htanα)2]1/2; C = (1 - R)1/2; D = (1 + R)1/2; E = cos2α(1 - R2)
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