University of Illinois Urbana-Champaign

Radial Segregation Patterns in Rotating Granular Mixtures: Waviness Selection

Hill, Kimberly M.; Gioia, Gustavo; Amaravadi, Deepak R.

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https://hdl.handle.net/2142/963

Description

Title
Radial Segregation Patterns in Rotating Granular Mixtures: Waviness Selection
Author(s)
  • Hill, Kimberly M.
  • Gioia, Gustavo
  • Amaravadi, Deepak R.
Issue Date
2004-11
Keyword(s)
  • Granular materials
  • Waviness
Abstract
We model the radial segregation patterns that form in a thin rotating drum partially filled with beads of two sizes. We predict that the waviness (or amplitude-to-wavelength ratio, denoted w) of a pattern should be subjected to low-pass filtering with a cutoff waviness wc that depends strongly on the fill level of the drum. Then we perform experiments and find that w ≤ wc for all patterns, in accord with our prediction. We also find that w = wc for (and only for) steady patterns, and conclude that the waviness of a steady pattern is selected by the low-pass filtering.
Publisher
American Physical Society
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/963
DOI
https://doi.org/10.1103/PhysRevLett.93.224301
Has Version(s)
Previously released as TAM Report 1057. http://hdl.handle.net/2142/314.
Copyright and License Information
Copyright owned by American Physical Society 2004.

Owning Collections

Published Papers - Theoretical and Applied Mechanics (TAM) PRIMARY
Papers published by faculty in Theoretical and Applied Mechanics