A large insulated tank, pressurized to 620 kPa (gage),
supplies air to a converging nozzle which discharges to
atmosphere. The initial temperature in the tank is 127C.
When flow through the nozzle is initiated, what is the Mach
number in the exit plane of the nozzle? What is the pressure in
the exit plane when the flow is initiated? At what condition will
the exit-plane Mach number change? How will the exit-plane
pressure vary with time? How will flow rate through the nozzle
vary with time?What would you estimate the air temperaturein
the tank to be when flow through the nozzle approaches zero?
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