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← ScienceWhich outcome results when strong adverse pressure gradients overcome laminar viscous forces in boundary layer flow around an airplane wing?
A)Increased lift vector magnitude develops
B)Flow separation and stall occurs✓
C)Reduced skin friction drag develops
D)Attached turbulent flow stays laminar
💡 Explanation
Flow separation and stall occurs because the adverse pressure gradient causes deceleration of the boundary layer, leading to transition to turbulence. Separation causes a stall in lift, therefore pressure drags increase exponentially, rather than laminar or turbulent flows being present otherwise.
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