Tutorial_3_CIVL2131.pdf

Tutorial_3_CIVL2131.pdf - CIVL2131 Fluid Mechanics Tutorial...

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CIVL2131 , Fluid Mechanics Tutorial 3: Bernoulli 10/08/2018 Covers week 3 lecture material Problem 1 (Bernoulli) An engineer is designing a fountain, as shown, and will install a nozzle that can produce a vertical jet. How high (h) will the water in the fountain rise if Vn = 26 m/s at h = 0 (h=34.5 m) Problem 2 (Bernoulli) The vent of the beer keg shown to the right is closed and the tank pressurized to increase the flowrate. What pressure, P , is needed to produce twice the discharge of that when the vent is open? ( 1 3 P g ) Problem 3 (Bernoulli) Consider the atomizer in the adjacent sketch. If the height from the water surface to the throat of the Venturi pipe is h , what is the minimum flow rate Q min of air at density air which will make it work? The exit diameter is D and the throat diameter d . ( 1 2 4 4 2 d D gh D air w )
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Problem 4 (continuity / mean velocity in conduits) Water flows in a converging duct with constant width B and varying height y. The velocity profile
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