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← ScienceWhich outcome occurs when Reynolds number exceeds a laminar flow regime for lubrication?
A)Increased viscous drag within lubricant.✓
B)Consistent load distribution, stable film.
C)Predictable friction force throughout range.
D)Enhanced heat transfer with smooth cooling.
💡 Explanation
Higher Reynolds numbers transition flow to turbulent; because turbulence increases momentum transfer, turbulent flow augments viscous drag within the lubricant film, impacting efficiency. Therefore, drag increases rather than smooth cooling because turbulence mixes fluids inefficiently, versus laminar flow.
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