Water (density 1000 kg/m', viscosity 1 mNs/m) is pumped through a 50 mm diameter pipeline at 4 kg/s and the pressure drop is 1 MN/m². What will be the pressure drop for a solution of glycerol in water (density 1050 kg/m', viscosity 10 mNs/m) when pumped at the same rate? Assume the pipe to be smooth. Ans. 1.77×10° N/m²

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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.