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| Numerical simulation of the microscopic mechanism of the particle separation under the condition of horizontal vibration |
| WANG Zhenyu1,2, ZHOU Wei1, 2, YANG Lifu 1, 2, MA Gang 1, 2, CHANG Xiaolin1, 2 |
1. State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan，Hubei 430072, China;
2. Key Laboratory of Rock Mechanics in Hydraulic Structural Engineering of Education Ministry, Wuhan University, Wuhan 430072, China |
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Abstract The three-dimensional particle flow discrete element method is employed to study the phenomenon of the particle vibration separation. The aim of this study is to reveal the microscopic mechanism of the interspace that appeared under the condition of horizontal vibration and explore the relationship between the number of particles and the particle vibration separation. The simulated results show that the average kinetic energy between the upper and the lower parts of particles is different, the particle which on the bottom have higher kinetic energy and will delivered more energy to the large particle to generate the interspace. The particle vibration separation will complete with the process of interspace filling. In addition, with the increase numbers of small particles under the same particle diameter ratio, the time-consuming of particle vibration separation decrease whereas the average kinetic energy difference increase significantly, and continuous increase the particle numbers do not shorten the time of separation.
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Received: 15 June 2015
Published: 15 August 2016
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