Water flows in the pipe schematised below with a mass rate of 30 kg/s. The inlet...
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Water flows in the pipe schematised below with a mass rate of 30 kg/s. The inlet area of the pipe is A₁ = 150 cm², while the exit area is A₂ = 25 cm² and it is inclined with an angle 8 = 45°. The pressure at the pipe outlet is atmospheric, the weight of the water in the pipe can be neglected and the viscous losses are negligible. a. Evaluate the velocity values of the fluid at the iniet and at the outlet of the pipe. Clearly explain each calculation step. b. By calling x the horizontal component of the flow direction and y the vertical component of the flow, write down the simplified expressions of the momentum balance along x and y. Clearly explain each calculation step. d. Evaluate the magnitude of the force required to hold the elbow in place. c. Evaluate the x-component of the force needed to hold the elbow in place. Clearly explain each calculation step. Water 30.0 kg/s 150 cm² Page 11 of 12 25 cm² [5 marks] 45° 40 cm [5 marks] [10 marks] [5 marks] TURN OVER Water flows in the pipe schematised below with a mass rate of 30 kg/s. The inlet area of the pipe is A₁ = 150 cm², while the exit area is A₂ = 25 cm² and it is inclined with an angle 8 = 45°. The pressure at the pipe outlet is atmospheric, the weight of the water in the pipe can be neglected and the viscous losses are negligible. a. Evaluate the velocity values of the fluid at the iniet and at the outlet of the pipe. Clearly explain each calculation step. b. By calling x the horizontal component of the flow direction and y the vertical component of the flow, write down the simplified expressions of the momentum balance along x and y. Clearly explain each calculation step. d. Evaluate the magnitude of the force required to hold the elbow in place. c. Evaluate the x-component of the force needed to hold the elbow in place. Clearly explain each calculation step. Water 30.0 kg/s 150 cm² Page 11 of 12 25 cm² [5 marks] 45° 40 cm [5 marks] [10 marks] [5 marks] TURN OVER
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L O PA V m PA4 mPAV 30 2 30 10 B 2 Given A m 30 kgs ... View the full answer
Related Book For
Income Tax Fundamentals 2015
ISBN: 9781305177772
33rd edition
Authors: Gerald E. Whittenburg, Martha Altus-Buller, Steven Gill
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