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Wear Rate Prediction in Multi-Size Particulate Flow Through Impellers

[+] Author Affiliations
Krishnan V. Pagalthivarthi, John M. Furlan, Robert J. Visintainer

GIW Industries, Inc., Grovetown, GA

Paper No. FEDSM2013-16192, pp. V01CT20A002; 10 pages
doi:10.1115/FEDSM2013-16192
From:
  • ASME 2013 Fluids Engineering Division Summer Meeting
  • Volume 1C, Symposia: Gas-Liquid Two-Phase Flows; Industrial and Environmental Applications of Fluid Mechanics; Issues and Perspectives in Automotive Flows; Liquid-Solids Flows; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows; Numerical Methods for Multiphase Flow; Transport Phenomena in Energy Conversion From Clean and Sustainable Resources; Transport Phenomena in Materials Processing and Manufacturing Processes; Transport Phenomena in Mixing; Turbulent Flows: Issues and Perspectives
  • Incline Village, Nevada, USA, July 7–11, 2013
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-5556-0
  • Copyright © 2013 by ASME

abstract

A three-dimensional finite element formulation of multi-size particulate flow through a centrifugal impeller is presented. From the predicted flow field, the wear rate distribution along the impeller blades and shrouds is calculated using empirically determined impact and sliding wear coefficients. The computational domain consists of the three dimensional region enclosed between the two blades and the two shroud surfaces with upstream and downstream extensions. An Eulerian-Eulerian mixture model is used for the multi-size particulate flow, which consists of mixture continuity and momentum equations as well as the individual solids continuity and momentum equations.

The effects of flow operating conditions on the wear rates are studied. A comparison of predicted wear rates from D50 or other mono-size simulations with multi-size particulate flow simulations shows that representing the slurry by a single particle size could result in substantial errors for different flow conditions.

Copyright © 2013 by ASME

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