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Which outcome regarding drag occurs when airflow around an airplane wing transitions from laminar to turbulent flow described by the Reynolds number?

A)Pressure differential lift diminishes rapidly
B)Lift instantly increases significantly
C)Parasitic drag decreases exponentially
D)Boundary layer remains entirely laminar

💡 Explanation

Diminished lift occurs because boundary layer trips stall due to boundary layer separation involving increased Form Drag. Therefore, lift is reduced, rather than increased, and pressure differential decreases rather than turbulent viscosity remaining smooth below its design limits.

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