风速与喷嘴安装角对细水雾颗粒运动的影响

Effect of the Wind Speed and the Nozzle Angle on Single Particle of Mist

为了研究射雾器中喷嘴安装角度和风速对单颗粒运动轨迹的影响,设计了由供风系统、喷雾系统、测试系统组成的远程射雾器实验平台。采用高速动态数字摄像仪对不同的风速和喷嘴安装角度进行了实验,即在风机开启时分别测定不同工况下细水雾单颗粒的运动,并利用MATLAB绘制细水雾单颗粒运动轨迹图,得到了不同风速和喷嘴安装角度对细水雾单颗粒运动的关系:当风速增大时,单颗粒的运动速度提高;喷嘴的安装角度对单颗粒的运动几乎没有影响。

In order to study the effects of nozzle angle and wind on movement trajectories of single particle,the experi- mental platform which was made up of wind supple system, mist supple system and test system was designed. High speed digital camera was adopted to make experiments on different wind speeds and nozzle angles. Through measuring the movement of a single particle under different working conditions when fan is on, the single particle trajectory of mist was drawn by using MAT- LAB, and the relationship between a single particle trajectory and the wind speed the nozzle angle was obtained. The speed of single particle is improved when the wind increases, and the nozzle angle has little effect on the movement of single particle.