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bachelor in business administration
Polytechnic State University Sanluis
Jan-2006 - Nov-2010
CPA
Polytechnic State University
Jan-2012 - Nov-2016
Professor
Harvard Square Academy (HS2)
Mar-2012 - Present
(CD-ROM)
For the nozzle in Problem 12.59, determine the back pressure, in bar, for which a normal shock would stand at the exit plane.
Problem 12.59:
A converging–diverging nozzle operating at steady state has a throat area of 3 cm2 and an exit area of 6 cm2 . Air as an ideal gas with k = 1.4 enters the nozzle at 8 bar, 400 K, and a Mach number of 0.2, and flows isentropically throughout. If the nozzle is choked, and the diverging portion acts as a supersonic nozzle, determine the mass flow rate, in kg/s, and the Mach number, pressure, in bar, and temperature, in K, at the exit. Repeat if the diverging portion acts as a supersonic diffuser.
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