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Which risk increases in unpressurized cryogenic fuel tanks subjected to external vibration?

A)Increased cavitation erosion of impellers
B)Premature fatigue failure of welds
C)Accelerated convective heat transfer
D)Destabilization of laminar boundary layers

💡 Explanation

Boundary layer tripping to turbulence results in increased heat flux into the cryogenic fluid, because the turbulent mixing enhances heat transfer at the tank walls, therefore destabilizing the tank rather than alternatives of cavitation, fatigue, or simple convection.

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