穿层固粒在湍流边界层内的运动特性

本文对稀固相气固两相湍流边界层流动，在平均场的意义和在固粒不影响边界层特性与忽略固粒相互作用的假定下，分析了穿层团粒所受作用力及其它因素对固粒运动特性的影响，研究了固粒穿越边界层后碰撞壁面时的不同现象，提出了湍流边界层内固粒运动特性分类准则，并且从磨损的角度探讨了气固两相边界展流动研究的前景。

The behaviour of solid particles crossing a turbulent boundary layer

his paper presents the results of a numerical investigation on the behaviour of a transverse particle in a dilute air-solid turbulent boundary layer.It's assumed that the behaviour of the boundary layar isn't effected by the paneles and the particle-particle interactions are neglible. On the basis of the effects of the acting forces and other factors on the behaviour of the particle, has investigated the phenomena of particlewall collisions, and has established the classification criteria of the kinematic behaviour of the solid particle traversed the boundary layer. This paper also discusses the prospects of the study of air -solid two -phase boundary layers in which the attentions are focused on the problem of erosive wear.