摘要
本文利用频闪激光片光源摄像和图象处理技术，对二维直通道内气固两相流动进行了实验研究，定量测定了固体粒子的运动参数、运动速度、方向．测得了粒子的运动轨迹．并得出一些有价值的结论：在本实验范围内粒子基本上沿直线运动，并处于不断加速的状态；粒子与壁面碰撞的时间极短，反弹角小于碰撞角，反弹速率小于碰撞速率．从而获得了在不同的进口气流速度及不同的通道倾角下固体粒子与固体壁面碰撞的某些规律．得到了粒子与壁面相互作用的关系表达式．为理论计算打下了基础．
In this paper the two-dimensional straight passage experimeat has been done. Pulsesheet-laser, television camera and image technique is used for measuremeat of the flow parameters in fixed quantity. A detailed experimental investigation has been carried out and the velocity, direction and flow structure of solid particle have been obtained. Meanwhile the new collide regular pattern are shown between solid particle and the wall with several inlet velocity of gas and several wall angles of inclination. A new interaction formula has been provided.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1997年第5期624-628,共5页
Journal of Engineering Thermophysics
基金
国家基金
国家攀登B项目
关键词
二维直通道
气固两相流动
计算模型
pulse-sheet-laser, image technique, two-dimensional straight passage,solidgas two phase flow
