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Which outcome accompanies laminar-turbulent transition in pipe flow?

A)Increased frictional head loss occurs rapidly
B)Decreased viscous forces dampen disturbances
C)Higher Reynolds number stabilizes the flow
D)Lower pipe roughness delays the shift

💡 Explanation

Increased frictional head loss promptly follows transition because momentum transfer via eddy formation associated with the Turbulence mechanism overcomes viscosity; therefore, head loss skyrockets rather than diminishing and this occurs at a specific critical Reynolds number.

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