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← ScienceWhich outcome occurs when fluid viscosity drops within turbulent flow?
A)Decreased drag along the boundary✓
B)Increased laminar sublayer thickness
C)Higher critical Reynolds number develops
D)Suppression of turbulent vortex formation
💡 Explanation
Reduced viscosity lowers shear stress transmitting momentum because viscous dissipation decreases. Boundary layer drag reduces therefore, due to lessened momentum gradient effects, rather than increased sublayer, or increased transition Reynolds number.
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