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← ScienceWhich outcome results when internal pipe roughness reduces the Reynolds number?
A)Increased laminar flow likelihood✓
B)Higher flow sonic velocity
C)Decreased drag flow resistance
D)Elevated wall heat transfer rate
💡 Explanation
Lowering the Reynolds number favors laminar flow; because Reynolds number reduction is due to increased viscous effects, the fluid experiences greater damping of turbulent fluctuations, therefore flow becomes more orderly rather than chaotic.
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