RADIAL AND AXIAL SEGREGATION OF GRANULAR MIXTURES IN THE ROTATING-DRUM GEOMETRY

Sanjay Puri and Hisao Hayakawa
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Sanjay Puri: School of Physical Sciences, Jawaharlal Nehru University, New Delhi – 110067, India
Hisao Hayakawa: Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto 606-01, Japan

Advances in Complex Systems (ACS), 2001, vol. 04, issue 04, 469-479

Abstract: We formulate a phenomenological model for the dynamical evolution of granular mixtures in a rotating drum. In particular, we present a dynamical basis for an "effective surface tension," which penalizes sharp interfaces between regions enriched in different components of the mixture. We also present representative results which demonstrate that our model captures many experimental features for this problem.

Keywords: Granular mixtures; rotating-drum geometry; radial and axial segregation (search for similar items in EconPapers)
Date: 2001
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DOI: 10.1142/S0219525901000383

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