A differential mercury manometer (Figure 3) is being used to measure the air flow rate inside a horizontal tubing. Considering that g = 9.8 m/s2, ρHg = 13,595 − 2.5 T kg/m3(T in Celsius), and T = 10 oC and the height difference is 200 mm, calculate the pressure drop in kPa.

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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.