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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    Abstract

    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
    Pages-
    Publication statusPublished - 9 May 2004

    Keywords

    • METIS-222249
    • IR-49620

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