Which outcome regarding oil pipeline efficiency increases when flow's Reynolds number exceeds 4000?

A)Laminar flow velocity decreases sharply

B)Fully developed turbulence raises drag✓

C)Viscosity approaches zero asymptotically

D)Pipe wall adhesion reduces significantly

💡 Explanation

Fully developed turbulence increases drag because, above a Reynolds number of 4000, the fluid transitions from laminar to turbulent flow. Inertial forces begin to dominate the viscous forces, therefore energy dissipation through increased drag occurs, rather than smooth-layered movement.

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Which outcome regarding oil pipeline efficiency increases when flow's Reynolds number exceeds 4000?

💡 Explanation

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