Experimental and numerical investigation on the packing of binary mixtures of spheres and ellipsoids

被引：11

作者：

Li, C. X. ^{[1
,2
]}

Zhou, Z. Y. ^{[3
]}

Zou, R. P. ^{[3
]}

Pinson, D. ^{[4
]}

Shen, Y. S. ^{[2
]}

Yu, A. B. ^{[3
]}

机构：

[1] Univ New South Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

[2] Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia

[3] Monash Univ, Dept Chem Engn, ARC Res Hub Computat Particle Technol, Clayton, Vic 3800, Australia

[4] BlueScope Steel, Steelmaking Technol & Planning, POB 202, Port Kembla, NSW 2505, Australia

来源：

POWDER TECHNOLOGY | 2020年 / 360卷

基金：

澳大利亚研究理事会;

关键词：

Binary mixture; Discrete element method; Ellipsoids; Coordination number; Volume fraction; Equivalent packing diameter; DISCRETE PARTICLE SIMULATION; RANDOM CLOSE PACKING; DYNAMIC SIMULATION; PARTICULATE SYSTEMS; COORDINATION-NUMBER; TERNARY MIXTURES; HARD-SPHERES; POROSITY; SIZE; CRYSTALLIZATION;

D O I：

10.1016/j.powtec.2019.10.103

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The packing of binary mixtures of spheres and ellipsoids are investigated by both physical experiments and discrete element method (DEM) in this work. The DEM model is first validated through comparison with experimental results in terms of packing density. The equivalent packing diameter is confirmed to be much better than the equivalent volume diameter in the characterization of particle size of ellipsoids. Then some key variables, including size ratio and their volume fractions and particle shape, are chosen to study their effects on the coordination number of binary mixtures of spheres and ellipsoids. The results show that increasing the size or volume fraction of one component in the mixture will increase the contacts of this component with the particles around this component. At fixed solid volume fraction, an ellipsoidal particle has more contacts with the departure of particle shape from a perfect sphere. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：1210 / 1219

页数：10

共 50 条

[21] Ultra-small-angle neutron scattering: A tool to study packing of relatively monodisperse polymer spheres and their binary mixtures
Reynolds, Philip A.
McGillivray, Duncan J.
Jackson, Andrew J.
White, John W.
PHYSICAL REVIEW E, 2009, 80 (01):
[22] Investigation into the packing structure of binary pebble beds using X-ray tomography
Wang, Cong
Liu, Yong
He, Chongyang
Chen, Lei
du Toit, C. G.
Liu, Songlin
POWDER TECHNOLOGY, 2022, 406
[23] Packing properties of binary mixtures in disordered sphere systems
Lingyi Meng
Peng Lu
Shuixiang Li
Particuology, 2014, 16 (05) : 155 - 166
[24] Experimental study on the packing of uniform spheres under three-dimensional vibration
Li, C. X.
An, X. Z.
Yang, R. Y.
Zou, R. P.
Yu, A. B.
POWDER TECHNOLOGY, 2011, 208 (03) : 617 - 622
[25] Experimental investigation on flow properties of biomass and pulverized coal binary powder mixtures
Xu, Guiling
Li, Menghui
Lu, Ping
CHEMICAL ENGINEERING COMMUNICATIONS, 2021, 208 (03) : 376 - 388
[26] Experimental and numerical investigation of the collapse of binary mixture of particles with different densities
Wang, Miao
Liang, Lun-xun
Lai, Zhi-qiang
Niu, Xin-qiang
Tian, Wen-xiang
Zhou, Wei
POWDER TECHNOLOGY, 2023, 415
[27] Disordered packing density of binary and polydisperse mixtures of curved spherocylinders
Meng, Lingyi
Li, Shuixiang
PARTICUOLOGY, 2017, 32 : 73 - 81
[28] Comparison of relaxation phenomena in binary gas-mixtures of Maxwell molecules and hard spheres
Gupta, Vinay Kumar
Torrilhon, Manuel
COMPUTERS & MATHEMATICS WITH APPLICATIONS, 2015, 70 (01) : 73 - 88
[29] Multistep Heterogeneous Nucleation in Binary Mixtures of Charged Colloidal Spheres
Liu, Jianing
Shen, Tong
Yang, Zhao Hua
Zhang, Shu
Sun, Guang Yu
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2017, 8 (19): : 4652 - 4658
[30] The evolution of segregation in dense inclined flows of binary mixtures of spheres
Larcher, Michele
Jenkins, James T.
JOURNAL OF FLUID MECHANICS, 2015, 782 : 405 - 429

← 1 2 3 4 5 →