DISTRIBUTION OF NEAREST NEIGHBORS IN DILUTE SUSPENSIONS OF MONODISPERSE SPHERES

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著者

    • ALONSO Manuel
    • Department of Chemical Engineering, Osaka Prefecture University

抄録

A model is proposed to describe the distribution of distances between nearest neighbors in random-packed low-density assemblies of equal-sized spheres. The model is based on the probability of not finding any sphere center in an arbitrary volume of a given size. This probability contains a limiting packing density, <I>φ<SUB>m</SUB></I>, as a fitting parameter. The physical meaning of <I>φ<SUB>m</SUB></I> is the solids concentration above which every particle in the suspension is in contact with at least one of its neighbors. It means that at solids concentration <I>φ</I> = <I>φ<SUB>m</SUB></I> the fraction of particles whose motions are constrained by the presence of any other contacting particles becomes unity. The value of <I>φ<SUB>m</SUB></I> is evaluated from nearest neighbor distributions in random assemblies of spheres obtained by computer simulation. The closeness of the resulting value, <I>φ<SUB>m</SUB></I> = 0.52, to that reported by Probstein <I>et al.</I> (1994) from viscosity measurements leads to the possibility of interpreting the empirical viscosity correlations in terms of the local arrangement of particles in the suspension.

収録刊行物

  • Journal of chemical engineering of Japan

    Journal of chemical engineering of Japan 29(3), 416-420, 1996-06-30

    The Society of Chemical Engineers, Japan

参考文献:  11件中 1-11件 を表示

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10003814401
  • NII書誌ID(NCID)
    AA00709658
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00219592
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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