Title: | Radial segregation patterns in rotating granular mixtures: Waviness selection |
Author(s): | Hill, Kimberly M.; Gioia, Gustavo; Amaravadi, Deepak R. |
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 cut-off 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. |
Issue Date: | 2004-12 |
Publisher: | Department of Theoretical and Applied Mechanics (UIUC) |
Series/Report: | TAM Reports 1057, (2004) |
Genre: | Technical Report |
Type: | Text |
Language: | English |
URI: | http://hdl.handle.net/2142/314 |
ISSN: | 0073-5264 |
Publication Status: | published or submitted for publication |
Peer Reviewed: | is peer reviewed |
Date Available in IDEALS: | 2007-03-09 |
Is Version Of: | Published as: Kimberly M. Hill, Gustavo Gioia, and Deepak R.Amaravadi. Radial segregation patterns in rotating granular mixtures: Waviness selection. Physical Review Letters, Vol. 93, No. 22, 2004, pp. 224301/1-4. DOI: 10.1103/PhysRevLett.93.224301. Copyright 2004 American Physical Society. http://hdl.handle.net/2142/963. |