Compressible Flow
A converging–diverging nozzle operates at steady state. Air as an ideal gas with k = 1.4 flows through the nozzle, discharging to the atmosphere at 14.7 lbf/in.2 and 510°R. A normal shock stands at the exit plane with px = 9.714 lbf/ in.2 The exit plane area is 2 in.2 Upstream of the shock, the flow is isentropic. Determine
(a) the throat area, in in.2
(b) the entropy produced in the nozzle, in Btu/°R per lb of air flowing.
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