Coordination number of the packing of ternary mixtures of spheres : DEM simulations versus measurements

L. Y. Yi, K. J. Dong, R. P. Zou, A. B. Yu

    Research output: Contribution to journalArticlepeer-review

    63 Citations (Scopus)

    Abstract

    Coordination number is an important microscopic parameter in describing the packing of particles. However, little information is available for particle mixtures because of the difficulty of investigating them experimentally. This article presents a numerical study on the coordination numbers of a ternary packing system with size ratios of 24.4/11.6/6.4 by means of the discrete element method (DEM). Good agreement between the simulated and measured results was obtained, which confirms, at a particle scale, that DEM is capable of generating reliable results for structural analysis of particle packing. It was also found that the coordination number distribution of each of the cases considered can be described by the so-called Johnson SB function. The distribution parameters of the function were quantified based on the DEM simulation results so that the coordination number distributions corresponding to different contact types in this ternary packing system can be fully described.
    Original languageEnglish
    Pages (from-to)8773-8785
    Number of pages13
    JournalIndustrial and Engineering Chemistry Research
    Volume50
    Issue number14
    DOIs
    Publication statusPublished - 2011

    Cite this