Hydraulic engineering; a practical treatise on the principles of water pressure and flow and their application to the development of water power, including the calculation, design and construction of water wheels, turbines, and other details of hydraulic power plants (1909)
American School (Chicago, Ill.), Black, Adolph, Turneaure, Frederick Eugene, 1866- · Chicago American School of Correspondence · leaf 32
t h =depth of water against the dam. Consider a length of dam of onefoot. By Art, 7 the total pressure P is equal to the pressure atthe half depth multiplied by the area of AB or P = -^ X ?/? X (length of AB) X 1. The center of pressure, by Art, 12, is two-thirds of the distancefrom A to B.… … D Fig. 19.The vertical component is likewise Pv = ^ X w X (length BD), but we can write BD = // tan 6. Hence P^=_J^Wr tan 6. (17) If the dam is submerged, as sliown in Fig. 19, then theluethod empU)_Yed in example 1 of this Article must be used. EXAMPLES FOR PRACTICE. 1. AVhat is the horizontal…
