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← ScienceWhich cavitation risk increases downstream when a control valve's Reynolds number exceeds its design limit?
A)Increased valve seat thermal expansion
B)Erosion due to imploding vapor bubbles✓
C)Reduced flow coefficient due to friction
D)Stagnation from high-pressure fluid lock
💡 Explanation
Increased Reynolds number past a limit induces turbulence, and therefore increases the risk of cavitation from rapid pressure changes that produce vapor bubbles. Cavitation erosion increases because stronger bubble implosions occur in unstable flows, rather than pressure lock induced by smooth flow.
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