Air flows isentropically in a converging-divergingnozzle with a throat area of 3 cm2. At section 1, the pressureis 101 kPa, the temperature is 300 K, and the velocityis 868 m/s. (a) Is the nozzle choked? Determine(b) A1 and (c) the mass flow. Suppose, without changingstagnation conditions or A1, the (flexible) throat isreduced to 2 cm2. Assuming shock-free flow, will therebe any change in the gas properties at section 1? If so,compute new p1, V1, and T1 and explain.

Given: Throat area A=3 cm2P1=101 kPaT1=300 KV1=868 m/s To determine: Whether the flow is choked or…

Answered: Air flows isentropically in a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Air flows isentropically in a converging-diverging
nozzle with a throat area of 3 cm². At section 1, the pressure
is 101 kPa, the temperature is 300 K, and the velocity
is 868 m/s. (a) Is the nozzle choked? Determine
(b) A₁ and (c) the mass flow. Suppose, without changing
stagnation conditions or A₁, the (flexible) throat is
reduced to 2 cm². Assuming shock-free flow, will there
be any change in the gas properties at section 1? If so,
compute new p₁, V₁, and T₁ and explain.

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