Simulation of density segregation in vibrated beds

C. Zeilstra; M.A. van der Hoef; J.A.M. Kuipers

doi:10.1103/PhysRevE.77.031309

Simulation of density segregation in vibrated beds

C. Zeilstra, M.A. van der Hoef, J.A.M. Kuipers

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Abstract

We have investigated by numerical simulation the density segregation of fine equal-sized bronze and glass particles subject to vertical vibrations. The model was found to be capable of predicting the two main segregation forms (“bronze on top” and “sandwich”) in roughly the same regions of the phase diagram as was found experimentally by Burtally et al. We investigated the effects of pressure air forcing, friction and restitution of kinetic energy in collisions, and box size on the segregation behavior. We find that next to the interstitial air friction also has a large influence on the formation of the sandwich structure.

Original language	English
Article number	031309
Number of pages	13
Journal	Physical review E: Statistical, nonlinear, and soft matter physics
Volume	77
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevE.77.031309
Publication status	Published - 2008

Keywords

METIS-254251
IR-59283

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10.1103/PhysRevE.77.031309

Zeilstra2008simulationFinal published version, 3.97 MB

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abstract = "We have investigated by numerical simulation the density segregation of fine equal-sized bronze and glass particles subject to vertical vibrations. The model was found to be capable of predicting the two main segregation forms (“bronze on top” and “sandwich”) in roughly the same regions of the phase diagram as was found experimentally by Burtally et al. We investigated the effects of pressure air forcing, friction and restitution of kinetic energy in collisions, and box size on the segregation behavior. We find that next to the interstitial air friction also has a large influence on the formation of the sandwich structure.",

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AB - We have investigated by numerical simulation the density segregation of fine equal-sized bronze and glass particles subject to vertical vibrations. The model was found to be capable of predicting the two main segregation forms (“bronze on top” and “sandwich”) in roughly the same regions of the phase diagram as was found experimentally by Burtally et al. We investigated the effects of pressure air forcing, friction and restitution of kinetic energy in collisions, and box size on the segregation behavior. We find that next to the interstitial air friction also has a large influence on the formation of the sandwich structure.

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DO - 10.1103/PhysRevE.77.031309

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Simulation of density segregation in vibrated beds

Abstract

Keywords

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