Question: A double-tank system in Fig P9.75 has two identical converging nozzles of 1-in2 throat area. Tank 1 is very large, and tank 2 is small

A double-tank system in Fig P9.75 has two identical converging nozzles of 1-in2 throat area. Tank 1 is very large, and tank 2 is small enough to be in steady-flow equilibrium with the jet from tank 1. Nozzle flow is isentropic, but entropy changes between 1 and 3 due to jet dissipation in tank 2. Compute the mass flow. (If you give up, Ref. 14, pp. 288€“290, has a good discussion)

A double-tank system in Fig P9.75

Air 100 Ibf/in? abs 520 R 10 lbf/in2 abs

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