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← ScienceWhich outcome occurs when Reynolds number greatly increases in aircraft wing airflow?
A)Onset of flow separation.✓
B)Drag coefficient linearly decreases.
C)Delayed stall angle occurrence.
D)Laminar sublayer becomes thicker.
💡 Explanation
Onset of flow separation happens because increased Reynolds number leads to a thinner boundary layer; therefore, adverse pressure gradients trigger turbulent transition and separation promoting lift decrease rather than drag reduction or laminar flow stabilization.
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