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← ScienceWhich outcome results when lubricating oil's Reynolds number increases in an engine?
A)Onset of turbulent flow regime✓
B)Lower viscous dissipation losses occur
C)Enhanced laminar flow film thickness
D)Reduced convective heat transfer around pistons
💡 Explanation
Increased Reynolds number indicates turbulence because the ratio of inertial to viscous forces rises. Therefore turbulence onset occurs, rather than stabilized laminar flow with less dissipation, because the increased kinetic energy overcomes the viscous damping effects causing irregular flow.
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