Radial segregation patterns in rotating granular mixtures: Waviness selection

K. M. Hill, G. Gioia, D. Amaravadi

Research output: Contribution to journalArticle

45 Scopus citations


The radial segregation patterns that form in a thin rotating drum partially filled with beads of two sizes were modeled. In the study, as soon as a moon pattern forms, it is subjected to waviness amplification and low-pass filtering. It was suggested that the waviness of a pattern should be subjected to low-pass filtering with a cutoff waviness that depends strongly on the fill level of the drum. It was also suggested that the filtering depends only on the geometry of the patterns and remains independent of the segregation mechanisms that operate in the flowing layer.

Original languageEnglish (US)
Article number224301
Pages (from-to)224301-1-224301-4
JournalPhysical review letters
Issue number22
StatePublished - Nov 29 2004

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