A jet engine (see Figure P1.9) is traveling through the air with a forward velocity of 300 m/s. The exhaust gases leave the nozzle with an exit velocity of 800 m/s with respect to the noz- zle. If the mass-flow rate through the engine is 10 kg/s, determine the jet engine thrust. Exit- plane static pressure is 80 kPa, inlet-plane static pressure is 20 kPa, ambient pressure surrounding the engine is 20 kPa, and the exit-plane area is 4.0 m?.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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Sub-Question: 

The flow through the exit of the engine is supersonic or subsonic? Why?

A jet engine (see Figure P1.9) is traveling through the air with a forward velocity of 300 m/s.
The exhaust gases leave the nozzle with an exit velocity of 800 m/s with respect to the noz-
zle. If the mass-flow rate through the engine is 10 kg/s, determine the jet engine thrust. Exit-
plane static pressure is 80 kPa, inlet-plane static pressure is 20 kPa, ambient pressure
surrounding the engine is 20 kPa, and the exit-plane area is 4.0 m?.
Transcribed Image Text:A jet engine (see Figure P1.9) is traveling through the air with a forward velocity of 300 m/s. The exhaust gases leave the nozzle with an exit velocity of 800 m/s with respect to the noz- zle. If the mass-flow rate through the engine is 10 kg/s, determine the jet engine thrust. Exit- plane static pressure is 80 kPa, inlet-plane static pressure is 20 kPa, ambient pressure surrounding the engine is 20 kPa, and the exit-plane area is 4.0 m?.
300 m/s
800 m/s
Transcribed Image Text:300 m/s 800 m/s
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