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← ScienceWhich regime shift will a microfluidic device experience when fluid velocity increases?
A)Transition from laminar to unstable✓
B)Increase in capillary action stability
C)Decrease of surface tension effects
D)Enhanced thermal convection stability
💡 Explanation
Flow becomes unstable with increased velocity because the increased Reynolds number promotes inertial forces over viscous forces, initiating the transition. Therefore, laminar flow shifts to unstable flow, rather than stabilizing other effects like convection, surface tension or capillary action.
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