Which effect on aircraft control surfaces occurs when approaching the *critical Mach number*?

💡 Explanation

Approaching the critical Mach number leads to a *shock-induced boundary layer separation*. This *separation* causes early *turbulence* because the shock drastically alters the pressure gradient which triggers adverse reactions within the aircraft flowfield; therefore drastically detaching boundary layers, rather than gradual detachment at lower speeds.

• Which consequence results when superfluid helium-4 undergoes rapid depressurization?
• Which outcome occurs when a power transformer's inductive reactance decreases?
• Which outcome raises catalyst productivity because its influence overcomes diffusion constraints?
• Which consequence results when rapid sublimation of dry ice cools a sealed container?
• Which electrical field disruption occurs when a charged high-speed spacecraft excessively emits ions?
• Which consequence results when liquid ammonia exceeds its critical temperature?