International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 396
or the aper-ture /?, and r is the head for theaperture C. Fir,. 174. Let V — the velocity of efflux in feet per second; // = the head in feet at the aperture considered; jr= the weight of the water in pounds flowing through this aperture per second. Were it not for the resistance of the air,… … will be expressed by 2^ The work it can do will be W h. HYDROMECHANICS. 385 Since the kinetic energy equals the work, —— = JV/i, or V — ^ Ig li ; that is, tJic velocity of efflux is the sai)ie as ifthe same weight of water had fallen through a height equalto its head. Example.—A small orifice is…
Railroad engineering
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