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Mechanism of Breakage of Drops in Oil/Water Dispersion in Kenics Mixer

[+] Author Affiliations
Aylianawati, T. Eddleston, A. W. Pacek

University of Birmingham, Birmingham, UK

Paper No. FEDSM2002-31364, pp. 1527-1532; 6 pages
doi:10.1115/FEDSM2002-31364
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

The mechanism of breakage in the turbulent flow in Kenics mixer has been investigated theoretically and experimentally. Drops trajectories (as a function of drop size and Re number) in the mixer were calculated using particle/drops tracking model and areas in the mixer where drops were exposed to the highest energy dissipation rate were identified. The calculated trajectories were experimentally verified in a glass Kenics mixer and the drop deformation/breakage was analyzed using high-speed video camera. The results indicate that even in turbulent flow, the mechanism of drop breakage depends on the Re number and position in the mixer.

Copyright © 2002 by ASME
Topics: Drops , Water , Mechanisms

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