Q3 Attempt All Parts A Bernoulli S Equation In The Absence Of Losses Can Be Viewed As The Conservation Of Energy Eq 1 (85.79 KiB) Viewed 13 times
Q3 Attempt all parts. (a) Bernoulli's Equation, in the absence of losses, can be viewed as the Conservation of Energy equation. State Bernoulli's Equation in the Energy form and indicate which form of energy each term in the equation represents. [3 marks] (b) Describe one limitation of applying Bernoulli's Equation when dealing with real fluids. [1 marks] ( Using Figure Q3c below that shows a Piezometer and a Pitot tube: (c) (i) Correctly label each of the items marked (1) – (4). [2 marks] (ii) Write an expression for (3) (i.e. the difference between (1) and (2)). [1 mark] (3) Piezometer (2) (1) Pitot tube V (4) Figure Q3c
(d) Water is drained from a large reservoir using a siphon pipe as shown in Figure Q3d below. The end of the siphon pipe is 2.5 m below the reservoir water surface level. At the highest part of the siphon (i.e. the crest), the centreline of the pipe is 1.8 m above the reservoir water surface level. The pipe has a diameter of 350 mm and discharges to the atmosphere. Assuming the water level in the reservoir remains constant and there are no energy losses, calculate: (i) The volumetric flow rate (Q) in the pipe. [10 marks] (ii) The fluid pressure at the crest of the siphon in kPa. [3 marks] . 1.8 m 2.5 m (3 Figure Q3d
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