A header with 170 psia saturated steam is feeding a pulp stock digester through 10.8 feet of 3-inch Schedule 40 pipe which includes three standard 90 degree elbows and a fully-open standard globe valve. The initial pressure in the digester is 20 psia. a) Determine the initial flow rate in pounds per second. The specific volume of saturated steam at 170 psia is 2.674 ft3/lbm. (Please use compressable flow equations to get the correct units of Pounds per seconds.) G= Y*(2*density*deltaP/K(fittings))^1/2 b) At what digester pressure would the flow transition from sonic to subsonic?

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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.