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← ScienceWhich outcome results when coating aircraft wings with riblets nears laminar breakdown?
A)Increased induced drag and stall✓
B)Reduced parasitic drag and separation
C)Elevated skin friction coefficients occur
D)Delayed boundary layer transition arises
💡 Explanation
Increased induced drag and stall arise because the riblets become submerged within turbulence, triggering increased momentum mixing via eddy viscosity, therefore increasing friction drag across the wing rather than maintaining laminar flow.
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