Modeling segregation of polydisperse granular materials in hopper discharge

被引：13

作者：

Deng, Zhekai ^{[1
,4
]}

Fan, Yi ^{[4
]}

Theuerkauf, Jorg ^{[4
]}

Jacob, Karl, V ^{[5
]}

Umbanhowar, Paul B. ^{[2
]}

Lueptow, Richard M. ^{[1
,2
,3
]}

机构：

[1] Northwestern Univ, Dept Chem & Biol Engn, Evanston, IL 60208 USA

[2] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA

[3] Northwestern Univ, Northwestern Univ Inst Complex Syst NICO, Evanston, IL 60208 USA

[4] Dow Chem Co USA, Midland, MI 48667 USA

[5] Univ Michigan, Dept Chem Engn, Ann Arbor, MI 48109 USA

来源：

POWDER TECHNOLOGY | 2020年 / 374卷

基金：

美国国家科学基金会;

关键词：

Segregation; Continuum model; Hopper discharge; PARTICLE-SIZE SEGREGATION; DISCRETE ELEMENT; BINARY-MIXTURES; CHUTE FLOW; DENSITY; GRAINSIZE;

D O I：

10.1016/j.powtec.2020.06.065

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Size segregation of polydisperse materials during hopper discharge is problematic in various industrial situations. However, due to the complexity of hopper discharge flow kinematics and limited prediction techniques for polydisperse segregation, accurate modeling of polydisperse segregation during hopper discharge has been challenging. We extend the application of a general predictive continuum model that captures the effects of segregation, diffusion, and advection to polydisperse hopper flow. Model predictions of segregation within the hopper and the average particle diameter during discharge match experimentally validated discrete element method simulations and experiments. (C) 2020 Published by Elsevier B.V.

引用

页码：389 / 398

页数：10

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