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Question 2) In order to test a jet engine at sea level, it is aimed to design a static thrust stand for the given following conditions: Inlet: Velocity= 200 m/s, Area= 1.2 m², Static absolute pressure= 75 kPa, Static temperature= 272 K Exit: Velocity= 600 m/s, Static gage pressure= 0 kPa a) Using the control volume in the figure to the right, calculate the nominal thrust level to design this stand for. b) Rewrite the equation of conservation of momentum if another control volume is selected for the analysis as shown to the right. Show how it simplifies down to the equation you have used in part (a). Explain why. c) In which direction would the engine move if it was not mounted onto the thrust stand?

          Question 2) In order to test a jet engine at sea level, it is aimed to design a static thrust stand for the
given following conditions:
Inlet: Velocity= 200 m/s, Area= 1.2 m², Static absolute pressure= 75 kPa, Static temperature= 272 K
Exit: Velocity= 600 m/s, Static gage pressure= 0 kPa
a) Using the control volume in the figure to the right,
calculate the nominal thrust level to design this stand for.
b) Rewrite the equation of conservation of momentum if another control volume is
selected for the analysis as shown to the right. Show how it simplifies down to the
equation you have used in part (a). Explain why.
c) In which direction would the engine move if it was not mounted onto the thrust stand?

Show more…

Question 2) In order to test a jet engine at sea level, it is aimed to design a static thrust stand for the
given following conditions:
Inlet: Velocity= 200 m/s, Area= 1.2 m², Static absolute pressure= 75 kPa, Static temperature= 272 K
Exit: Velocity= 600 m/s, Static gage pressure= 0 kPa
a) Using the control volume in the figure to the right,
calculate the nominal thrust level to design this stand for.
b) Rewrite the equation of conservation of momentum if another control volume is
selected for the analysis as shown to the right. Show how it simplifies down to the
equation you have used in part (a). Explain why.
c) In which direction would the engine move if it was not mounted onto the thrust stand?

Added by Francisco W.

University Physics with Modern Physics

Hugh D. Young 14th Edition

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