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← ScienceWhich outcome increases when a subsonic aircraft's Reynolds number surpasses a stability threshold, due to increasing airspeed?
A)Laminar flow profile reduction
B)Adverse pressure gradient strength
C)Turbulent boundary layer formation✓
D)Decreased skin friction drag
💡 Explanation
A higher Reynolds number signifies increased inertial forces relative to viscous forces; therefore turbulent boundary layer formation results because laminar flow becomes unstable and transitions to turbulence, rather than a reduction in laminar flow.
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