ENSEMBLE AVERAGED AND MIXTURE THEORY EQUATIONS FOR INCOMPRESSIBLE FLUID PARTICLE SUSPENSION

被引：80

作者：

JOSEPH, DD ^{[1
]}

LUNDGREN, TS ^{[1
]}

JACKSON, R ^{[1
]}

SAVILLE, DA ^{[1
]}

机构：

[1] PRINCETON UNIV,DEPT CHEM ENGN,PRINCETON,NJ 08544

来源：

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | 1990年 / 16卷 / 01期

基金：

美国国家科学基金会;

关键词：

ensemble average; fluid-particle suspensions; fluidized beds; mixture theory;

D O I：

10.1016/0301-9322(90)90035-H

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Two-fluid equations for flowing composites of solid particles in a liquid have been given by mixture theory and by ensemble averaging. The mixture theory equations are postulated and the ensemble averaged equations are derived. The ensemble averaged equations give rise to an explicit form for interaction terms. The equations obtained by the two methods are different. The expression for the stress in a Newtonian fluid with rigid particles is the point at issue. Jackson & Saville, in an appendix to this paper, introduce a method of soft spatial averaging which yields the same result as in the case of ensemble averages. © 1990.

引用

页码：35 / 42

页数：8

共 10 条

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[2]

BOWEN RM, 1971, CONTINUUM PHYSICS, V2

[3]

DREW D, 1986, ADV MULTIPHASE FLOW

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