Mechanical Operations

For a turbine agitated and baffled tank, operating at low Reynold’s number (based on impeller diameter), the power number (Np) varies with NRe as_____.

  • A. Np ∝ NRe
  • B. Np ∝ √NRe
  • C. Np → constant
  • D. Np ∝ 1/NRe
Answer: Option D.

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