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← ScienceWhich consequence results when cavitation erosion occurs near a ship propeller, modeled using the Euler equation?
A)Increased propeller rotational efficiency
B)Localized material loss and pitting✓
C)Decreased frictional drag on hull
D)Uniform stress distribution on blades
💡 Explanation
Material loss happens since cavitation bubbles collapse violently due to high pressure regimes caused by flow acceleration; this is interfacial cavitation. When the pressure falls below the fluid vapor pressure, bubbles form because fluid evaporates locally, therefore leading to pitting, rather than smoother surfaces.
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