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Which outcome occurs when combustion instability escalates inside a pulse detonation engine's cycle?

A)Uncontrolled pressure rise and deflagration
B)Regenerative cooling loop improvement
C)Enhanced thermoacoustic resonance damping
D)Increased cycle-averaged thrust efficiency

💡 Explanation

Uncontrolled pressure rise and deflagration is the result because detonation transitions occur due to the Zeldovich-von Neumann-Döring (ZND) model, therefore leading to destructive overpressure, rather than enhanced cooling, damping, because other cycles manage steady thrust.

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