DISTRIBUTION OF NEAREST NEIGHBORS IN DILUTE SUSPENSIONS OF MONODISPERSE SPHERES

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概要

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• 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, φm, as a fitting parameter. The physical meaning of φm 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 φ = φm the fraction of particles whose motions are constrained by the presence of any other contacting particles becomes unity. The value of φm is evaluated from nearest neighbor distributions in random assemblies of spheres obtained by computer simulation. The closeness of the resulting value, φm = 0.52, to that reported by Probstein et al. (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.

• 社団法人 化学工学会の論文
• 1996-06-30

著者

• Alonso M

  Csic Madrid Esp

• ALONSO Manuel

  Department of Chemical Engineering, Osaka Prefecture University

• Alonso Manuel

  Department Of Chemical Engineering Osaka Prefecture University

関連論文

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