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← ScienceWhich outcome of turbulence occurs when flow exceeds a water pump's design Reynolds threshold?
A)Increased cavitation erosion on impeller✓
B)Decreased pump vibration and noise
C)Higher pump efficiency overall shown
D)Lower effective motor current required
💡 Explanation
Turbulent flow generates rapid pressure fluctuations creating and collapsing bubbles leading to cavitation erosion, because collapsing vapor bubbles generate intense micro-jets impacting the impeller surface. This outcome is the increased cavitation, therefore it will pit and wear rather than improve efficiency.
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