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Solved: Air enters a nozzle at 0.5 MPa, 420 K, and a
Chapter 17, Problem 1766(choose chapter or problem)
Air enters a nozzle at 0.5 MPa, 420 K, and a velocity of 110 m/s. Approximating the flow as isentropic, determine the pressure and temperature of air at a location where the air velocity equals the speed of sound. What is the ratio of the area at this location to the entrance area?
Questions & Answers
QUESTION:
Air enters a nozzle at 0.5 MPa, 420 K, and a velocity of 110 m/s. Approximating the flow as isentropic, determine the pressure and temperature of air at a location where the air velocity equals the speed of sound. What is the ratio of the area at this location to the entrance area?
ANSWER:Step 1 of 5
Air enters a nozzle at specified temperature, pressure, and velocity. The exit pressure, exit temperature, and exit-toinlet area ratio are to be determined for a Mach number of at the exit.
Assumptions are
1. Air is an ideal gas with constant specific heats at room temperature.
2. Flow through the nozzle is steady, one-dimensional, and isentropic.
The properties of air are and .