Study on Granular Flow in Hoppers Using DEM Simulation

doi:10.11930/j.issn.10.11930.2015.11.39

Abstract

Abstract: Granules are mediums between liquids and solids. Different granules exhibit different characteristics with complex kinetic mechanisms. Fortunately, the microscopic dynamics of granule flow can be simulated using discrete element method(DEM). In this paper, the theory and development of DEM technique are presented. Moreover, the accuracy of computer simulation depends on how accurate the mechanical model is established. The typical mechanics models used in DEM technique as well as the kinetic studies of granular flow in hopper using DEM technique are illustrated, including the flow behaviour, the distribution of velocities and contact forces and the influences of particle properties. The study results are of the great importance for the practical applications of hopper storing practices, such as coal bins, ash bins and limestone hoppers.

Key words: granular flow, DEM, hopper, microscopic dynamics

CLC Number:

TM621.2

XIA Boshi, CAO Qiangli, ZHANG Shengping. Study on Granular Flow in Hoppers Using DEM Simulation[J]. journal1, 2015, 48(11): 39-44.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.10.11930.2015.11.39

https://www.electricpower.com.cn/EN/Y2015/V48/I11/39

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