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← ScienceWhich phenomenon can occur downstream when river flow exceeds Reynold's limit?
A)Incipient cavitation bubble formation
B)Transition to turbulent flow regime✓
C)Increased laminar boundary layer thickness
D)Decreased hydraulic head gradient
💡 Explanation
Exceeding Reynold's number indicates inertial forces dominate because viscous forces cannot dampen perturbations, therefore turbulent flow initiates, rather than laminar; cavitation requires vapor pressure effects and hydraulic head concerns elevation pressures.
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