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← ScienceWhich outcome determines the drag coefficient regime when a sphere moves through a Newtonian fluid?
A)Onset of boundary layer separation✓
B)Development of surface cavitation
C)Fluid relative permittivity modulation
D)Turbulent kinetic energy dissipation rate
💡 Explanation
Boundary layer separation changes the drag regime because the Reynolds number affects when the adhesive viscous forces are overcome by inertial detachment; therefore boundary separation happens rather than laminar flow adhesion or cavitation.
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