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 51
nthe reservoir. The pressure at A will he represented hy the head/?, and that at B and C hy the heads //^, and //^ respectively, whichheads may be greater or less than the head at A according as the])ipei slopes downwards or upwards from A. Now let the valve at D he opened ])artly so as to permit… … Fig. 27. is due to two causes. First, a part of the pressure head has beenused to give the water some velocity in the pipe, and second, apart has been consuiued in the friction of the water in passing fromA to B and C. The portion used in giving the water its velocityis the same as the head…
