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Which flow regime follows exceeding Reynolds number in pipes?

A)Transition to turbulent flow
B)Laminar flow is maintained
C)Viscosity reaches absolute zero
D)Mach number must approach unity

💡 Explanation

Transition to turbulent flow occurs when the Reynolds number exceeds a critical value, because inertial forces that promote chaotic flow overwhelm the damping viscous forces. Therefore the flow becomes turbulent, rather than staying laminar or having hypothetical viscosity scenarios.

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