Dynamics of axial separation in long rotating drums

I. S. Aranson, L. S. Tsimring

Research output: Contribution to journalArticle

51 Scopus citations


We propose a continuum description for the axial separation of granular materials in a long rotating drum. The model, operating with two local variables, concentration difference and the dynamic angle of repose, describes both initial transient traveling wave dynamics and long-term segregation of the binary mixture. Segregation proceeds through ultraslow logarithmic coarsening.

Original languageEnglish (US)
Pages (from-to)4643-4646
Number of pages4
JournalPhysical Review Letters
Issue number23
StatePublished - Jan 1 1999


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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