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Pseudoplastic consume less power than Newtonian fluids?

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in Bioprocess Engineering by (80.7k points)
Pseudoplastic consume less power than Newtonian fluids?

(a) True

(b) False

I had been asked this question in exam.

I want to ask this question from Power Requirements for Mixing in section Fluid Flow and Mixing of Bioprocess Engineering

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The correct option is (a) True

Best explanation: The laminar region extends to higher Reynolds numbers in pseudoplastic fluids than in Newtonian systems. At Rei below 10 and above 200 the results for Newtonian and non-Newtonian fluids are essentially the same; in the intermediate range, pseudoplastic liquids consume less power than Newtonian fluids. Flow patterns in pseudoplastic and Newtonian fluids differ significantly. Even when there is high turbulence near the impeller in pseudoplastic systems, the bulk liquid may be moving very slowly and consuming relatively little power.

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