The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study

Junwu Wang, M.A. van der Hoef, J.A.M. Kuipers

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

6 Citations (Scopus)
47 Downloads (Pure)

Abstract

Discrete particle simulations are by now well established as an effective tool to study the mechanics of complex gas-solid flows in gas-fluidized beds. In this study, a state-of-the-art discrete particle model is used to explore the role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles. We find that the particle-particle interactions, including inelastic particle-particle collision; inter-particle friction and slightly cohesive forces, only have a negligible effect on the hydrodynamics of bubbling gas-fluidized beds of Geldart A particles. This is due to the fact that only a very small fraction of the energy input is dissipated during the non-ideal particle-particle interaction. We finally show that the selected drag correlation model significantly affects the bed hydrodynamics.
Original languageEnglish
Title of host publication6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion
Subtitle of host publicationXi’an, China, 11-15 July 2009
Place of PublicationXi'an, China
PublisherAIP Publishing LLC
Number of pages9
ISBN (Print)9780735407442
DOIs
Publication statusPublished - 11 Jul 2010
Event6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2009: Proceedings of the International Symposium of Multiphase Flows - Xi'an, China, China
Duration: 11 Jul 200915 Jul 2009
Conference number: 6

Publication series

NameAIP conference proceedings
PublisherAmerican Institute of Physics
Volume1207
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference6th International Symposium on Multiphase Flow, Heat Mass Transfer and Energy Conversion, ISMF 2009
Abbreviated titleISMF
CountryChina
CityXi'an, China
Period11/07/0915/07/09

Keywords

  • METIS-263173
  • IR-67392

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    Wang, J., van der Hoef, M. A., & Kuipers, J. A. M. (2010). The role of particle-particle interactions in bubbling gas-fluidized beds of Geldart A particles: A discrete particle study. In 6th International Symposium on Multiphase Flow, Heat Mass transfer and Energy Conversion: Xi’an, China, 11-15 July 2009 (AIP conference proceedings; Vol. 1207). Xi'an, China: AIP Publishing LLC. https://doi.org/10.1063/1.3366461