Air is flowing through a 6-cm diameter adiabatic duct with
Chapter 12, Problem 154P(choose chapter or problem)
Problem 154P
Air is flowing through a 6-cm diameter adiabatic duct with inlet conditions of V1 = 120 m/s, T1=400 K, and P1 = 100 kPa and an exit Mach number of Ma2 = 1. To study the effect of duct length on the mass flow rate and the inlet velocity, the duct is now extended until its length is doubled while P1 and T1 are held constant. Taking the average friction factor to be 0.02, calculate the masil flow rate, and the inlet velocity, for various extension lengths, and plot them against the extension length. Discussthe results.
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