Question

Mixing is sufficiently done away from the impeller?

(a) True

(b) False

The question was asked in unit test.

My enquiry is from Mixing in chapter Fluid Flow and Mixing of Bioprocess Engineering

Answer 1

The correct answer is (b) False

To elaborate: Near the impeller there is a region of high turbulence where fluid cur- rents converge and exchange material. Away from the impeller, flow is slower and largely streamline; mixing in these regions is much less intense than near the impeller.