Overcome the Fear of Shear

The mixing of biological products is delicate business, but concerns about shear sensitivity can be overblown. Rational process development, rules of thumb and tools like CFD can lead to fearless mixing.

By Thomas A. Post, Ph.D., Consultant, Post Mixing Optimization and Solutions

Errata:
  • On the second page of this article, the formula for impeller tip speed is incorrect. It should read: TS=(p)ND.

  • A photo caption incorrectly identifies an "A310" hydrofoil turbine. The photo is, in fact, an A340.


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