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← ScienceWhich consequence results when the Reynolds number increases drastically in high-speed fuel injection systems?
A)Improved fuel atomization occurs
B)Laminar flow becomes more stable
C)Cavitation erosion risk increases✓
D)Fuel viscosity decreases sharply
💡 Explanation
Cavitation erosion risk increases because higher Reynolds number signifies increased turbulence intensity, accelerating the collapse of vapor bubbles via boundary layer separation - **inertial cavitation**. Therefore, cavitation occurs rather than smoother combustion because turbulent flow exceeds material threshold.
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