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| Titel |
Segregation time-scales in model granular flows |
| VerfasserIn |
Lydie Staron, Jeremy C. Phillips |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250128069
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| Publikation (Nr.) |
 EGU/EGU2016-8015.pdf |
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| Zusammenfassung |
| Segregation patterns in natural granular systems offer a singular picture of the systems
evolution. In many cases, understanding segregation dynamics may help understanding the
system’s history as well as its future evolution. Among the key questions, one concerns the
typical time-scales at which segregation occurs. In this contribution, we present
model granular flows simulated by means of the discrete Contact Dynamics method.
The granular flows are bi-disperse, namely exhibiting two grain sizes. The flow
composition and its dynamics are systematically varied, and the segregation dynamics
carefully analyzed. We propose a physical model for the segregation that gives
account of the observed dependence of segregation time scales on composition and
dynamics.
References
L. Staron and J. C. Phillips, Stress partition and micro-structure in size-segregating granular flows,
Phys. Rev. E 92 022210 (2015)
L. Staron and J. C. Phillips, Segregation time-scales in bi-disperse granular flows, Phys. Fluids 26 (3),
033302 (2014) |
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