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← ScienceWhich result is observed when turbulent flow exceeds a pump's cavitation limit?
A)Increased impeller erosion via bubble collapse✓
B)Improved hydrodynamic efficiency via mixing
C)Decreased energy losses along laminar streamlines
D)Optimized fluid density maintains constant pressure
💡 Explanation
Increased impeller erosion occurs because cavitation bubbles form and rapidly collapse due to turbulent pressure fluctuations. This implosion creates microjets that damage the material via repeated stress, therefore erosion risk increases, rather than efficiency, because the liquid pressure is dropping.
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