On the behaviour of solid particles in a horizontal boundary layer with turbulence and saltation effects

被引：87

作者：

Taniere, A

Oesterle, B ^{[1
]}

Monnier, JC

机构：

[1] Univ Nancy 1, ESSTIN, Lab Univ Mecan & Energet Nancy, F-54500 Vandoeuvre Nancy, France

[2] Inst Mecan Fluides Lille, F-59000 Lille, France

[3] Ecoles Mines Douai, Dept Energet Ind, Douai, France

来源：

EXPERIMENTS IN FLUIDS | 1997年 / 23卷 / 06期

关键词：

D O I：

10.1007/s003480050136

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A horizontal turbulent boundary layer of air carrying heavy solid particles is investigated experimentally. Mean and r.m.s. velocities of air and particles are measured by LDA, and particle mass flux distributions are obtained by means of a sampling method. The influence of the saltation mechanism is revealed by the large particle r.m.s. velocity in the near-wall region, and by the velocity lag of the particles in the outer region of the boundary layer, which is shown to be closely related to their free fall velocity. The present original results are discussed and compared with available experimental data concerning other kinds of horizontal flows.

引用

页码：463 / 471

页数：9