Explanation Given: The diameter of the hose ( d ) is 2 in. The average velocity of the water at point C ( V C ) is 50 ft/s . The frictional head loss in the hose ( h L ) is 1.25 ft/ 15 ft. The total length of the hose ( L ) is 150 ft . Calculation: Calculate the total friction loss ( h L ) . h L = 1.25 ft 15 ft × 150 ft =12 .5 ft Consider the water is incompressible and inviscid and the steady flow state and water in the pump is control volume. The point B and C are exposed to atmosphere, so the pressure at these points is zero. p B = p C = 0 Water is drawn from large reservoir so the velocity at point V B = 0 . The datum is passed through point B , so the datum levels are, z B = 0 z C = 4 ft − 20 ft = − 16 ft The head losses are negligible. h L = 0 Write the Bernoulli's equation between point B and C . p B γ w + V B 2 2 g + z B + h pump = p C γ w + V C 2 2 g + z C + h turb + h L 0 + 0 + 0 + h pump = 0 + ( 50 ft/s ) 2 2 ( 32

2nd Edition

ISBN: 9780134649290

Author: Russell C. Hibbeler

Publisher: PEARSON

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

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Chapter 5, Problem 103P

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The required power output of the pump.

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Chapter 5, Problem 102P

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