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 125
energycarried away per second by the water leaving the wheel at Nf or L, -BV, -«7*-^£ (18a) Since the condition that cn = vn makes the parallelogram ofvelocities at N consist of two isosceles triangles (see also Fig. 50) we have wn = 2vnsm—, in which if the value of vn for best 2 effect as derived… … 9 = 1 J IV. *> sin d 0^ - ^U^i^ (20) <^s ^ ^7^2^^7 sL <^t * *-> I A^ -a- % /^ 4*<~i^ § 70. THEORY OF THE FOURNEYRON TURBINE. 103 From the details of this expression we gather that the smallerthe angles a and d can be made, the greater the efficiency.In practice a is taken from 20° to…
Hydraulic machinery
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