Q5: A converging-diverging nozzle, which is shown in the figure, is supplied with air from a large tank where the pressure is Po and exhausts to the atmosphere with a pressure of Ph. The area A at distance x from the throat is given by (A = At (1 + 0.75x/L)), where At is the throat cross- sectional area and Lis the total length of the diverging part of the nozzle. At a certain pressure ratio P/P, a normal shock wave stands in the nozzle at a point where the Mach number before the shock is 1.7. Find the position of the normal shock wave from the throat, and the pressure ratio P/Po. Ans.: 0.45 L = 0.753 P.

Q5: A converging-diverging nozzle, which is shown in the figure, is supplied with air from a large tank where the pressure is Po and exhausts to the atmosphere with a pressure of Ph. The area A at distance x from the throat is given by (A = At (1 + 0.75x/L)), where At is the throat cross- sectional area and Lis the total length of the diverging part of the nozzle. At a certain pressure ratio P/P, a normal shock wave stands in the nozzle at a point where the Mach number before the shock is 1.7. Find the position of the normal shock wave from the throat, and the pressure ratio P/Po. Ans.: 0.45 L = 0.753 P.

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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Question

Q5: A converging-diverging nozzle, which is
shown in the figure, is supplied with air from a
large tank where the pressure is Po and exhausts
to the atmosphere with a pressure of Pt. The
area A at distance x from the throat is given by
At (1 + 0.75x/L)), where At is the throat
cross- sectional area and Lis the total length
of the diverging part of the nozzle. At a certain
pressure ratio P/Pb, a normal shock wave stands
in the nozzle at a point where the Mach number
before the shock is 1.7. Find the position of the
normal shock wave from the throat, and the
(A
%3D
pressure ratio P/Po.
Ans.: 0.45 L= 0.753
P.

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