Question

(a) The triangular flume shown in the figure is used to carry water over a ravine. It is made of unfinished concrete with a Manning coefficient value of 0.014. It has a slope of 0.001. If the intended flow is to be 4 m3/s, determine the depth of flow. (10 points) 459 45° Flume (b) A cruise missile under test is moving horizontally at Ma =2 in the atmosphere at an elevation of 2000 m (Air temperature is 2 °C). Determine the half-angle "alpha" of the Mach cone. (5 points) (c) A Francis turbine is rotating at 75 rpm under a hydraulic head of 30 ft and develops 150 hp with a discharge of 0.1 m3/s. When the guide vanes remain in their fixed position and the hydraulic head is 15 ft, determine the rotation of this turbine and the corresponding power of the turbine. (10 points)

Answer 1

according to my guidelines i should only answer one question

y bread b=y+X CS b=24 e) Zry Perimeter Area bh (2)() y? Coefficent =) Area manning depth of flow 0.014 1/2 I 42% хѕ ХА n p2₂ 2/3 x(x²) X A 4 = 1 0.014 (* y)2137(0.00) 413 Y 2 3.5417 = ху » 2/3 ) 3.54173) 7213442 813 3.5417 y 813 Yz 1.6067/m