Air flows through a converging-diverging nozzle that has a throat diameter of 5

Question

Air flows through a converging-diverging nozzle that has a throat diameter of 5 inches and an exit diameter of 25 inches. The nozzle operates with fixed upstream stagnation chamber conditions of 530 psia and 100F. The nozzle exhausts into a tank in which the back pressures may be varied. a.) At what back pressure is the flow in the nozzle sonic at the throat and subsonic everywhere else?(psia) b.) At what back pressure is the nozzle operating on design? (psia) c.) At what back pressure will there be a normal standing shock in the nozzle exit plane? (psia) d.) If the back pressure is 245.3 psia, what is the diameter where the normal shock is positioned? (inches) e.) What is the mass flow rate for each of the above parts - a.),b.),c.),d.) (lbm/s)

Explanation / Answer

use bernoulli's theorem and continuity equation of fluids and V1A1 = V2A2 and u will have ur solution

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