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← ScienceWhich risk increases when airplane wing de-icing fails during snowfall?
A)Boundary layer flow separation events✓
B)Turbulence kinetic energy intensification grows
C)Skin friction drag coefficients decline
D)Chordal Reynolds number increases rapidly
💡 Explanation
Icing disrupts smooth airflow; the adverse pressure gradient overwhelms the boundary layer. This triggers stall through flow separation, because the increased surface roughness decreases lift coefficient, rather than increased lift due to smooth airflow, even in higher Reynolds number airflow.
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