Simulation of the flow and segregation of particle mixtures in liquid fluidization

Zongyan Zhou, Aibing Yu

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

18 Citations (Scopus)


One interesting phenomenon called layer inversion is often observed in liquid fluidization for a binary mixture of particles. In the past macroscopic studies of physical experiments and theoretical models, it is difficult to obtain particle scale information which, however, is very important to develop understanding of layer inversion phenomenon. In this work, an approach of combined discrete particle simulation (DPS) for particle flow and computational fluid dynamics (CFD) for liquid flow is used to simulate this process. The general features of layer inversion obtained from the simulation are consistent with those observed in physical experiments. The occurrence of layer inversion is further analyzed in terms of force information, including particle-particle interaction force and particleliquid interaction force. The simulation results illustrate that DPS-CFD approach presents a promising method to identify the underlying mechanisms of layer inversion for a binary mixture of particles in liquid fluidization.
Original languageEnglish
Title of host publicationPowders and Grains 2009: Proceedings of the 6th International Conference on Micromechanics of Granular Media
EditorsMasami Nakagawa, Stefan Luding
Place of PublicationMelville NY USA
PublisherAmerican Institute of Physics
Pages993 - 996
Number of pages4
ISBN (Print)9780735406827
Publication statusPublished - 2009
Externally publishedYes
EventPowders and Grains 2009 - Golden CO USA, Golden, United States of America
Duration: 13 Jul 200917 Jul 2009
Conference number: 6th


ConferencePowders and Grains 2009
Country/TerritoryUnited States of America

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