Issue |
Europhys. Lett.
Volume 64, Number 1, October 2003
|
|
---|---|---|
Page(s) | 29 - 35 | |
Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
DOI | https://doi.org/10.1209/epl/i2003-00111-0 | |
Published online | 01 November 2003 |
Dynamics and steady state of a vibrated granular binary mixture model
Físice Teórica, Universidad de Sevilla,
Apartado de Correos 1065 E-41080 Sevilla, Spain
Received:
2
May
2003
Accepted:
2
August
2003
A model for the dynamical evolution of a granular binary mixture is analyzed. This system is submitted to a tapping procedure, similarly to what is done in real experiments. In the weak vibration limit, an effective dynamics for the tapping process is derived, and the steady-state probability distribution is analytically found. The steady probability does not depend on the details of the configuration, but only on the number of particles of each of the two species. Depending on the values of their fugacities, the system can be either almost full of small or big particles, i.e., segregation effects are present.
PACS: 45.70.-n – Granular systems / 05.50.+q – Lattice theory and statistics (Ising, Potts, etc.) / 45.70.Mg – Granular flow: mixing, segregation and stratification
© EDP Sciences, 2003
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