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Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant specific heats determine the state at several locations in the system. Note: The specific heat ratio and gas constant for air are given as k=1.4 and R=0.287 kJ/kg-K respectively. --Given Values-- Inlet Temperature: T1 (K) = 352 Inlet pressure: P1 (kPa) = 639 Inlet Velocity: V1 (m/s) = 86 Area at nozzle inlet: A1 (cm²) = 5.59 Throat area: A (cm²) = 2.29 Area at diffuser exit: A (cm²) = 2.98
a) Determine the Mach number at the inlet.
Sagot :
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