An orifice of diameter 200 mm is fitted at the bottom of a boiler drum of length 6 m and diameter 2 m. The drum is horizontal and half full of water. Find the time required to empty the boiler, given the value of Cd= 0.60.

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Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.