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Which phenomenon increases when a jet engine experiences turbulence?

A)Heat transfer coefficient
B)Laminar boundary thickness
C)Propulsive efficiency rise
D)Hydraulic diameter decrease

💡 Explanation

Increased turbulence enhances mixing and momentum transfer, enhancing the convective heat transfer coefficient of the system by disrupting the laminar sublayer; therefore the heat transfer increases, rather than the laminar area decreasing because turbulence mixes the flows.

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