Problem 13.19 - Problem 13.19 Given: Isentropic air flow in...

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Problem 13.19 [Difficulty: 2] Given: Isentropic air flow in converging nozzle Find: Pressure, speed and Mach number at throat Solution: Basic equations: T 0 T 1 k1 2 M 2 p 0 p 1 2 M 2 k Given or available data p 1 350 kPa V 1 150 m s M 1 0.5 p b 250 kPa k 1.4 R 286.9 J kg K The flow will be choked if p b /p 0 < 0.528 p 0 p 1 1 2 M 1 2 k p 0 415 kPa p b p 0 0.602 (Not choked) Hence p 0 p t 1 2 M t 2 k where p t p b p t 250 kPa so M t 2 p 0 p t k 1 M t 0.883 Also V 1 M 1 c 1 M 1 kR T 1
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This note was uploaded on 01/20/2012 for the course EGN 3353C taught by Professor Lear during the Fall '07 term at University of Florida.

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