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Multiphase Particle-in-Cell Simulations of Dense-Phase Flows in Cyclone Separators

[+] Author Affiliations
Dale Snider, Ken Williams

Arena-flow, LLC, Albuquerque, NM

Robert A. Johnson

ExxonMobil Research and Engineering, Fairfax, VA

Paper No. HT-FED2004-56665, pp. 777-785; 9 pages
doi:10.1115/HT-FED2004-56665
From:
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 3
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4692-X | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME

abstract

An Eulerian-Lagrangian numerical method is used to simulate the cyclone separator experiment by Hoffmann [1] which is operated under low solid loadings. Comparisons are made with data from for overall separation efficiency and on a size-distribution basis, i.e., ‘cut-grade’. The Arena-flow computational approach is a transient, three-dimensional multiphase particle-in-cell (MP-PIC) numerical method where the dynamics of both the continuum fluid and millions of discrete particle ‘clouds’ are solved using Eulerian and Lagrangian representations, respectively. The Arena-flow software allows for any distribution of particle types, sizes, and density. The three-dimensional transient simulations show excellent agreement with measured data which have cyclone efficiencies on the order of 85%. The CFD analysis reveal details that cannot be experimentally measured, such as internal particle size segregation, wall effects, vortex entrainment, particle-to-particle interactions and agglomeration.

Copyright © 2004 by ASME

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