摘要
颗粒分选现象广泛存在于自然界和工业中,目前主要研究球形颗粒的粒径和密度引起的分选。由于不规则颗粒更具有普遍性,越来越多的研究拓展到颗粒形状引起的分选上,主要是以球形颗粒为基础,再加入椭球、立方体、圆柱体等标准形状的颗粒进行实验测量或计算机仿真,以得到多种类型的颗粒分布等。本文总结了7个分选量化模型,并以此为基础分析了球形颗粒与椭球、块状、柱状颗粒之间的分选结果,最后展望颗粒分选研究的前景。
Particle segregation is widely present in nature and industry. Current research mainly focuses on the segregation caused by the size and density of the spherical particles. While irregular particles are more prevalent and more and more research is expanding to the segregation caused by particle shape. Researches are mainly based on spherical particles, and then extend to ellipsoidal, cubic, cylindrical and other standard shapes of particles with experimental measurement or computer simulation to obtain the distribution of multiple types of particles. In this paper, seven segregation quantification models are summarized and the segregation results between spherical particles and ellipsoidal, lumpy and cylindrical particles are analyzed. Finally, we try to look forward to the prospects of particle segregation research.
作者
徐悦
李然
修文正
陈泉
孙其诚
杨晖
XU Yue;LI Rany;XIU Wenzheng;CHEN Quan;SUN Qicheng;YANG Hui(School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;School of Medical Instrument and Food Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;State Key Laboratory of Hydroscience and Engineering,Tsinghua University,Beijing 100084,China)
出处
《力学与实践》
北大核心
2022年第1期1-11,共11页
Mechanics in Engineering
基金
国家自然科学基金(11902190,12072200,12002213)
上海市自然科学基金(20ZR1438800)资助项目。
关键词
颗粒材料
混合分选机制
形状分选
量化模型
granular materials
mixed segregation mechanism
shape segregation
quantitative models
