Experimental engineering and manual for testing. For engineers and for students in engineering laboratories (1906)
Carpenter, Rolla C. (Rolla Clinton), 1852-1919 · New York, J. Wiley & Sons; [etc., etc.] · leaf 344
, of con-cave or bent form. If we let c equal the velocity ofwater as it strikes the wheel, v theperipheral velocity of the wheel, Qthe quantity of water in cubic feet FlG- 154.—Undershot-wheel.per second, G the weight per cubic foot, k2 the portion of thehead corresponding to the elevation of the… … &[£=&+$ * See Weisbachs Hydraulics, page 291. 314 EXPERIMENTAL ENGINEERING. [§244 From experiments of Morin it was found that when v -r- cwas less than 0.63, the efficiency 7 was 0.41. When v -7- c wasbetween 0.63 and 0.8, rf was 0.33. The efficiency obtainedfrom the best form of these…
Building materials · Machinery
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