Direct numerical simulation of particle mixing in dispersed gas-liquid-solid flows using a combined volume of fluid and discrete particle approach

N.G. Deen, M. van Sint Annaland, J.A.M. Kuipers

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    In this paper a hybrid model is presented for the numerical simulation of gas-liquid-solid flows using a combined Volume Of Fluid (VOF) and Discrete Particle (DP) approach applied for respectively dispersed gas bubbles and solid particles present in the continuous liquid phase. The hard sphere DP model, originally developed by Hoomans et al. (1996) for dense gas-solid systems, has been extended to account for all additional forces acting on particles suspended in a viscous liquid and has been combined with the VOF model presented recently by van Sint Annaland et al. (2005) for complex free surface flows. In this paper the physical foundation of the combined VOF-DP model will be presented together with illustrative computational results highlighting the capabilities of this hybrid model. The effect of bubble-induced particle mixing has been studied focusing on the effect of the volumetric particle concentration. In addition particle mixing was studied in systems with coalescing bubbles.
    Original languageUndefined
    Title of host publicationConference Proceedings of CFD-2006
    Place of PublicationMelbourne
    Number of pages10
    Publication statusPublished - 13 Dec 2007
    EventFifth International Conference on CFD in the Process Industries - Melbourne, Australia
    Duration: 13 Dec 200615 Dec 2006


    ConferenceFifth International Conference on CFD in the Process Industries
    Other13-15 December 2006


    • METIS-236211
    • IR-69262

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