玻璃颗粒与平板碰撞的PIV实验研究  

Experimental Investigation on Rebound Characteristics of Impinging Glass Beads on Plates

作　　者：徐磊[1] 李争起[2] 陈智超[2] 邵杰[1] 

机构地区：[1]国核电力规划设计研究院,北京100094 [2]哈尔滨工业大学能源学院,黑龙江哈尔滨150001

出　　处：《节能技术》2011年第5期404-407,共4页Energy Conservation Technology

摘　　要：本文根据利用激光粒子成像技术(PIV)对玻璃颗粒与铁质钢板碰撞的特性进行了观测。研究了碰撞前后固体粒子的速度大小、方向等参数变化的规律,获得了入射角和出射角之间的关系,进而推出了在不同的进口气流速度及不同的入射角下固体粒子和平板碰撞后的运动规律。Particle Imaging Velocimetry was utilized to investigate rebound characteristics of glass beads impinging on steel plates. The influence of air velocity, mean particle diameter and plate angle on particle rebound characteristics were studied. Both incident and scattering angles and both normal and tangen- tial velocities were obtained. Angle, normal and tangential restitution ratios are used to describe rebound characteristics. The study shows that the various angles and velocities of the incident particle. Futher more, the paticles motion equations after collision of different striking angles and velocities have been fitted.

关 键 词：颗粒碰撞 激光粒子成像技术 气固两相流 

分 类 号：TK223.23[动力工程及工程热物理—动力机械及工程]