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← ScienceWhich consequence results when highly viscous fluid exceeds the Reynolds number threshold inside a narrow pipe?
A)Onset of turbulent flow regime✓
B)Increased laminar flow stability linearly
C)Decreased pressure drop at entry
D)Formation of a stable parabolic profile
💡 Explanation
Exceeding the critical Reynolds number causes the onset of the turbulent flow regime, as inertial forces dominate viscous effects. This is because the increased momentum amplifies disturbances, therefore the flow becomes chaotic rather than remaining laminar by viscous damping.
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