Squeeze flow of interstitial Herschel-Bulkley fluid between two rigid spheres

被引：35

作者：

Xu, Chunhui ^{[1
]}

Yuan, Li ^{[1
]}

Xu, Yong ^{[1
]}

Hang, Wenbin ^{[1
]}

机构：

[1] China Agr Univ, Coll Sci, Beijing 100083, Peoples R China

来源：

PARTICUOLOGY | 2010年 / 8卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Wet granule; Discrete element method; Herschel-Bulkley fluid; Viscous force; POWER-LAW FLUID; FORCES; FILM;

D O I：

10.1016/j.partic.2009.07.008

中图分类号：

TQ [化学工业];

学科分类号：

081705 [工业催化];

摘要：

Interaction between two spheres with an interstitial fluid is crucial in discrete element modeling for simulating the behaviors of 'wet' particulate materials. The normal viscous force of squeeze flow between two arbitrary rigid spheres with an interstitial Herschel-Bulkley fluid was studied on the basis of Reynolds' lubrication theory, resulting in analytical integral expressions of pressure distribution and the viscous force between the two spheres. According to the variation of shear stress, the fluid was divided into yielding and unyielding regions, followed by a discussion on the thickness of the two regions. The result of this paper could be reduced to either the power-law fluid or the Bingham fluid case. (C) 2010 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：360 / 364

页数：5

共 20 条

[1]

Adams M.J., 1987, TRIBOLOGY PARTICULAT, P154

[2]

A finite element analysis of the squeeze flow of an elasto-viscoplastic paste material [J].