Comparison of continuum models using the kinetic theory of granular flow with discrete particle models and experiments: extent of particle mixing induced by bubbles

G.A. Bokkers, M. van Sint Annaland, J.A.M. Kuipers

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    The bubble formation and extent of particle mixing induced by a single bubble injected in a mono-disperse uidised bed at incipient uidisation conditions has been studied with a Two-Fluid continuum Model (TFM) using the Kinetic Theory of Granular Flow (KTGF) and com- pared with experiments and simulation results obtained from a Discrete Particle Model (DPM). The eect of dierent gas-particle drag models and frictional viscosity models on the bubble behaviour and extent of particle mixing has been assessed. To describe the extent of particle mixing well, a frictional viscosity model needs to be included, however, the currently available frictional viscosity models need further improvement.
    Original languageUndefined
    Title of host publicationProceedings of Fluidization XI
    Place of PublicationNaples
    Publication statusPublished - 9 May 2004
    EventFluidization XI conference: Proceedings of Fluidization XI - Naples
    Duration: 9 May 200414 Sep 2004


    ConferenceFluidization XI conference


    • METIS-222249
    • IR-49620

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