中国物理B ›› 2005, Vol. 14 ›› Issue (9): 1844-1849.doi: 10.1088/1009-1963/14/9/028

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Effects of container geometry on granular segregation pattern

吴永洪1, 胡茂彬2, 孔祥照2, 吴清松2   

  1. (1)Department of Mathematics and Statistics, Curtin University of Technology, Perth WA 6845, Australia; (2)School of Engineering Science, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2005-01-14 修回日期:2005-04-14 出版日期:2005-09-20 发布日期:2005-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10274074), and the Australian Research Council through a Discovery Project Grant.

Effects of container geometry on granular segregation pattern

Hu Mao-Bin (胡茂彬)a, Kong Xiang-Zhao (孔祥照)a, Wu Qing-Song (吴清松)a, Wu Yong-Hong (吴永洪)b    

  1. a School of Engineering Science, University of Science and Technology of China, Hefei 230026, China; b Department of Mathematics and Statistics, Curtin University of Technology, Perth WA 6845, Australia
  • Received:2005-01-14 Revised:2005-04-14 Online:2005-09-20 Published:2005-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10274074), and the Australian Research Council through a Discovery Project Grant.

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摘要： In a set of vibrating quasi-two-dimensional containers with the right-hand sidewall bent inward, three new segregation patterns have been identified experimentally including a Two-Side segregation Pattern, a Left-hand Side segregation Pattern and a pattern where big particles aggregate to the upper left part of the container. In a container with small bending degree, either the two-side segregation pattern or the left-hand side segregation pattern is stable, which is determined by the initial distribution of particles.

关键词: granular material, segregation, boundary geometry effect

Abstract: In a set of vibrating quasi-two-dimensional containers with the right-hand sidewall bent inward, three new segregation patterns have been identified experimentally including a Two-Side segregation Pattern, a Left-hand Side segregation Pattern and a pattern where big particles aggregate to the upper left part of the container. In a container with small bending degree, either the two-side segregation pattern or the left-hand side segregation pattern is stable, which is determined by the initial distribution of particles.

Key words: granular material, segregation, boundary geometry effect

中图分类号:  (Phase equilibria)

  • 64.75.-g