Hydraulic motors, with related subjects, including centrifugal pumps, pipes, and open channels, designed as a text-book for engineering schools (1905)
Church, Irving Porter, 1851-1931 · New York : J. Wiley & Sons; [etc, ] · leaf 185
me the angles a and d to be 20° and 15°respectively, and that e0 = en (nearly; for present purposes, inorder to compute the ratio F0+Fn)> Since n = rn, =r, the ratio rn+n is unity; therefore, from eq. (16), § 91, y ^^^^= 1.32; and, from eq. (12), 0.259 J\i.: 32 2x13 5i7n=0.92\)1.32XlX nn,n… … FlG. 77. dicular FE be dropped from F upon 1..D, we have DE, ori77B, =D1-E1] i.e., DE = vi-wx cos a. Also, FE-Wi sin a.Now the ratio FE+ DE = tsm fi, /? being the supplement of the § 94a. TURBINES. NUMERICAL EXAMPLE. 147 desired angle /?; hence (remembering that Vi = vn for this typeof wheel) we…
Hydraulic machinery
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