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    Overcome the Fear of Shear

    Sept. 9, 2005
    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.
    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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    About the Author

    Thomas A. Post | Ph.D.