At low Reynolds number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ?/?N3 D5: Power number Re = ? N D2/?: Reynolds number N is the impeller rotational speed, and D is the impeller diameter ?
A. Po ? Re-1.0
B. Po ? Re0.0
C. Po ? Re0.5
D. Po ? Re1.0
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