转速对三维滚筒内颗粒混合特性的影响

doi:10.7523/j.issn.2095-6134.2017.02.015

中国科学院大学学报 ›› 2017, Vol. 34 ›› Issue (2): 218-225.DOI: 10.7523/j.issn.2095-6134.2017.02.015

转速对三维滚筒内颗粒混合特性的影响

张紫薇¹, 葛良², 桂南², 李振林¹, 杨阳¹

1 中国石油大学(北京)机械与储运工程学院, 北京 102249;
2 清华大学核能与新能源技术研究院, 北京 100084

收稿日期:2016-04-15 修回日期:2016-10-17 发布日期:2017-03-15
通讯作者: 桂南,E-mail:guinan@mail.tsinghua.edu.cn
基金资助:
高等学校全国优秀博士学位论文作者专项资金（201438）资助

Influence of rotating velocity on particle mixing characteristics in a three-dimensional tumbler

ZHANG Ziwei¹, GE Liang², GUI Nan², LI Zhenlin¹, YANG Yang¹

1 College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China;
2 Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

Received:2016-04-15 Revised:2016-10-17 Published:2017-03-15

摘要/Abstract

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。

关键词: 滚筒, 颗粒, 混合, 离散元方法, 信息熵

Abstract: 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.

Key words: rotating drum, particle, mixing, discrete element method, information entropy

中图分类号:

TQ027.1

张紫薇, 葛良, 桂南, 李振林, 杨阳. 转速对三维滚筒内颗粒混合特性的影响[J]. 中国科学院大学学报, 2017, 34(2): 218-225.

ZHANG Ziwei, GE Liang, GUI Nan, LI Zhenlin, YANG Yang. Influence of rotating velocity on particle mixing characteristics in a three-dimensional tumbler[J]. , 2017, 34(2): 218-225.

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转速对三维滚筒内颗粒混合特性的影响

Influence of rotating velocity on particle mixing characteristics in a three-dimensional tumbler

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