Competition between chaos and order: Mixing and segregation in a spherical tumbler

J. F. Gilchrist*, Julio M Ottino

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


The competition between granular mixing and segregation patterns in a two orthogonal axes rotating-rocking sphere was studied. The chaos and order investigation corresponded to the continuous flow regime, with the flow within the sphere being three-dimensional and time-periodic. The results show remarkably robust segregated bands that survived the rocking amplitudes as large as 60 degrees over a wide frequency range. The space-time plots of the segregated patterns were also obtained by using a continuum flow model.

Original languageEnglish (US)
Article number061303
Pages (from-to)613031-613036
Number of pages6
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Issue number6 1
StatePublished - Dec 1 2003

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)


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