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← ScienceWhich consequence results when a converging-diverging nozzle's throat reaches Mach number one?
A)Shockwaves spontaneously form downstream
B)Flow rate becomes mass-flow limited✓
C)Complete pressure recovery is achieved
D)Boundary-layer separation is fully suppressed
💡 Explanation
Flow becomes choked via the area-Mach number relation; the `choking` mechanism limits the mass flow because, at Mach 1, further reducing downstream pressure doesn't increase the throat velocity; therefore, further throughput is impossible, rather than permitting higher mass flow.
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