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← ScienceWhich outcome affects airfoil stall when adverse pressure gradient limit nears?
A)Turbulent boundary layer separation✓
B)Decreased skin friction drag
C)Increased lift-to-drag ratio
D)Laminar flow re-establishment
💡 Explanation
Turbulent boundary layer separation becomes likely because the increased adverse pressure gradient requires sufficient kinetic energy near the airfoil surface from 'Bernoulli's Equation', preventing flow reversal. Therefore, stall occurs, rather than increased lift, since reversed flow disrupts normal airflow.
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