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← ScienceWhich mechanism causes increased drag on submarines in seawater?
A)Boundary layer turbulence production✓
B)Wave-induced buoyancy oscillation
C)Laminar flow pressure reduction
D)Propeller cavitation induced vibration
💡 Explanation
Increased subsurface speed triggers boundary layer turbulence production due to increased Reynolds number, forming eddies and flow separation. Therefore, drag increases significantly because of momentum transfer, rather than simple viscous drag or bouyancy effects.
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