Pattern scaling in the axial segregation of granular materials in a rotating tube
| dc.creator | Charles, Christopher R. J. | |
| dc.creator | Khan, Zeina S. | |
| dc.creator | Morris, Stephen W. | |
| dc.date | 2005-01-25 | |
| dc.date.accessioned | 2026-07-07T03:03:25Z | |
| dc.date.available | 2026-07-07T03:03:25Z | |
| dc.description | Granular mixtures frequently segregate by grain size along the axis of partially-filled, horizontal, rotating tubes. When segregation approaches saturation at the surface, a well-defined pattern of bands with wavelength $λ$ emerges. The long-term dynamics of the pattern involves a much slower coarsening process. We characterized the initial saturated wavelength $λ$ as a function of the diameter of the tube $D$ for a filling fraction of 30 %, for $1.9 {\rm cm} \leq D \leq 11.5 {\rm cm}$. We also studied the initial growth-rate of the bands as $D$ varies. We find that $λ/D$ is not constant, but rather increases rapidly for small $D$. The growth-rate of bands decreases with smaller $D$ and segregation is suppressed completely for sufficiently small $D$. These relatively simple features are not captured by any of the existing models of axial segregation. | |
| dc.description | 3 pages, 4 figures. More info at http://www.physics.utoronto.ca/nonlinear | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0501606 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0501606 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/25745 | |
| dc.subject | Soft Condensed Matter | |
| dc.subject | Statistical Mechanics | |
| dc.title | Pattern scaling in the axial segregation of granular materials in a rotating tube | |
| dc.type | text |