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Which effect arises when high Reynolds number flow separates from an airfoil?

A)Premature stall at lower angles
B)Increased lift due to circulation
C)Laminar flow across wing surface
D)Reduced skin friction coefficient

💡 Explanation

When the Reynolds number is high, the inertial forces dominate, leading to turbulence that encourages boundary layer separation, an instance of Adverse Pressure Gradient, because the fluid cannot effectively overcome it, which results in premature stall rather than other lift-enhancing or drag-reducing effects.

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