Which instability results when exceeding a centrifugal pump's Reynolds number limits?

💡 Explanation

Suction recirculation cavitation increases because when a centrifugal pump design exceeds Reynolds number limits, turbulent kinetic energy dominates, leading to local pressure drops behind the impeller blades in the suction. This lowers net positive suction head; therefore cavitation, rather than other electro-mechanical failures, results.

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