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← ScienceWhich risk escalates when water-to-steam transition nears throttling valve?
A)Flow-induced vibration increases considerably✓
B)Valve material creep nears ultimate stress
C)Reynolds number shifts towards laminar
D)Thermal expansion mismatch becomes irrelevant
💡 Explanation
Flow-induced vibration increases as cavitation forms pockets of vapor then collapse vigorously nearby, because the mechanism, vapor bubble collapse, couples energy into the surrounding fluid; therefore flow-induced vibration becomes a risk rather than increased valve creep under normal operation.
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