Q3) Ethanol at 20c (P= 789 Kglm,4z00012 152/m.s) flow at a horizontal cast-iren pipe with L 12- 125 apm through and d= s cm, Neglecting entrance effect ,estimaite A- the wa ll shear stress 3- te precent reduction in friction factor if the pipe walls are polished to a smoot surface. ? (1-2)

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Q: EthanoL at 20c(8 = 789 kglm, M=00012 152/m.s) flow at a horizontal cast-iren pipe with L 12m 125 apm…

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A: Write the expression for pressure drop in the passage of pipe.

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.