摘要
借助开源软件OpenFOAM中的离散元方法软球模型,分别模拟5种典型转速下三维滚筒内的碳球颗粒混合过程。分析研究滚筒内颗粒流态随时间的演化过程,展示不同颗粒流态下的颗粒混合结构特性。借助信息熵和新的混合指数,即差值函数,定量地研究滚筒转速对颗粒混合特性的影响。
The mixing processes of carbon spherical particles in 3-D tumbler at five typical rotating speeds are simulated by using the open source software OpenFOAM utilizing soft sphere model of discrete element method. The evolution of particle mixing is investigated, and the structural characteristics of particle mixing in different regimes are illustrated. Moreover, with the help of the information entropy and a series of new mixing indexes, which are the difference value functions, we quantitatively analyze the influence of rotating velocity on particle mixing characteristics.
出处
《中国科学院大学学报（中英文）》
CSCD
北大核心
2017年第2期218-225,共8页
Journal of University of Chinese Academy of Sciences
基金
高等学校全国优秀博士学位论文作者专项资金(201438)资助
关键词
滚筒
颗粒
混合
离散元方法
信息熵
rotating drum
particle
mixing
discrete element method
information entropy
