Question

Two tanks A and B are connected by a pipe 100 ft. long. The first 70 ft. has a diameter of 3 in. and then the pipe is suddenly reduced to 2 in. for the remaining 30 ft. The difference of levels between the tanks is constant at 30 ft. f 0.005 and the coefficient of contraction at all sudden changes of area is 0.58. Find all the head losses including that at the sharp edged pipe entry at A in terms of the velocity v2 and hence find the flow in gallons/min. Draw the Hydraulic Gradient diagram (i.e, the EGL and HGL, noting the values of 2 z and everywhere they change) noting the values of change 8' V1 V2

Answer 1

rbattna the iven valves 1千 Los1 at pipe erty Aこにゾ-29 -1 P1 レ Cortsaat 2x12.门 Velocity lar, attle exit i")to t:t fut dt con be seo

С。ом.ce étionalvo"6ea tyfpr pe·anl velocity i.e> 1o 1 23 velecity bed in cat26 Losse pipe fhet!") 1.375 feet Loss atdz 0.65チfeet. Rait loaz/. 263 feet ト375ft steat