A SIMILAR PROFILE REGIME IN THE VERTICAL FULLY-DEVELOPED FLOW OF GAS SOLIDS SUSPENSIONS

被引：13

作者：

MOLODTSOF, Y ^{[1
]}

MUZYKA, DW ^{[1
]}

机构：

[1] UNIV WESTERN ONTARIO,LONDON N6A 3K7,ONTARIO,CANADA

来源：

INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | 1991年 / 17卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

GAS SOLIDS SUSPENSIONS; VERTICAL FLOW; DILUTE PHASE FLOW; SIMILAR PROFILES; PARTICLE;

D O I：

10.1016/0301-9322(91)90025-X

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper examines the asymptotic behaviour of general probabilistic multiphase flow equations in fully developed gas-solids suspension flows as the solids concentration tends toward zero. This analysis suggests the existence of self-similar concentration and solids velocity profiles as solutions to general multiphase flow equations at low solids loading. The existing experimental evidence confirms this theoretical result and strongly suggests this to be a general feature of dilute suspension flows. The analysis further suggests that deviations from a similar profile regime as the solids loading is increased can be deduced from the relationship between solids flowrate and mean solids concentrations. Finally, the flow equation analysis provides a partial explanation for the difficulty associated with developing generalizable suspension pressure drop correlations.

引用

页码：573 / 583

页数：11

共 23 条

[1] MEASUREMENTS OF INDIVIDUAL ALUMINA PARTICLE VELOCITIES AND RELATIVE SLIP OF DIFFERENT-SIZED PARTICLES IN A VERTICAL GAS-SOLID SUSPENSION FLOW USING A LASER-ANEMOMETER SYSTEM [J].