竖直振动管中颗粒毛细效应的离散元模拟 1)

凡凤仙,王志强,刘举,张华腾

DEM SIMULATION OF GRANULAR CAPILLARITY IN VERTICALLY VIBRITING TUBE 1)

Fengxian Fan,Zhiqiang Wang,Ju Liu,Huateng Zhang

表1 模拟采用的颗粒物性参数

Table 1 Particle properties used in simulation

Parameter Symbol Value particle density / (kg*m-3) pp 2500 Young’s modulus / MPa Y 10 Poisson’s ratio V 0.25 coefficient of restitution e 0.5 particle-particle sliding friction coefficient 0.8 particle-wall sliding friction coefficient WW 0.58 particle-particle rolling friction coefficient 0.1 particle-wall rolling friction coefficient 0.05