Standard atmospheric air (at stagnation conditions, T0 = 59 degree F, P0 = 14.7

Question

Standard atmospheric air (at stagnation conditions, T0 = 59 degree F, P0 = 14.7 psia) is drawn steadily through a frictionless and adiabatic converging nozzle into an adiabatic, constant cross section area duct. The duct is 10 ft long and has an inside diameter of 0.5ft. The average friction factor, f, for the duct is estimated ~ 0.03.

a) what is the maximum flow rate in slugs/s through the duct?

b) For this maximum flowrate, determine the values of static temperature, static pressure, stagnation temperature, stagnation pressure, and velocity at the inlet and the exit of the constant area duct.

Explanation / Answer

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