Q5: A converging-diverging nozzle, which is shown in the figure, is supplied with air from a large tank where the pressure is Poand exhausts to the atmosphere with a pressure of Po. 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 L is the total length of the diverging part of the nozzle. At a certain pressure ratio PoJPb, 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 Р.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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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 Po. 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 PoPb, 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
Р.
Ps
Transcribed Image Text: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 Po. 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 PoPb, 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 Р. Ps
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