Power Consumption in the Turbulent Regime for a Coaxial Mixer
- 1 August 2002
- journal article
- research article
- Published by Wiley in The Canadian Journal of Chemical Engineering
- Vol. 80 (4) , 601-603
- https://doi.org/10.1002/cjce.5450800423
Abstract
The power consumption of a new coaxial mixer composed of an anchor impeller and a pitched‐blade turbine impeller, and a series of rods operated in a contra‐rotating mode has been characterized experimentally in the turbulent regime. It is shown that both the power curve and the turbulent power number vary significantly with the speed ratio between the impellers. Likewise with single impeller mixers, the transition regime starts at a Reynolds number above 100 and the turbulent regime between 103 and 104 irrespective of the definition of the Reynolds number used.Keywords
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