Air from a reservoir at 20°C and 500 kPa flows through a duct and forms a normal shock downstream of a throat of area 10 cm². By an odd coincidence it is found that the stagnation pressure downstream of this shock exactly equals the throat pressure. What is the area where the shock wave stands?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Air from a reservoir at 20°C and 500 kPa flows through a
duct and forms a normal shock downstream of a throat of
area 10 cm². By an odd coincidence it is found that the
stagnation pressure downstream of this shock exactly
equals the throat pressure. What is the area where the
shock wave stands?
Transcribed Image Text:Air from a reservoir at 20°C and 500 kPa flows through a duct and forms a normal shock downstream of a throat of area 10 cm². By an odd coincidence it is found that the stagnation pressure downstream of this shock exactly equals the throat pressure. What is the area where the shock wave stands?
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