摘要
用数值模拟的方法探索流速、液滴尺寸、液滴变形和热泳等因素对颗粒捕集效率的影响规律。模拟结果表明,亚微颗粒对热泳力敏感,捕集效率随环境温度升高而提高;液滴变形增加了捕集面积,改变了周围流场,对亚微颗粒的捕集效率有显著提高。液滴变形和热泳机制能进一步提高亚微颗粒的捕集效率。
Numerical simulation methods are used to explore the influence of flow velocity,droplet size,droplet deformation and thermophoresis on particle capture efficiency.The simulation results show that submicron particles are sensitive to thermophoretic force,and the trapping efficiency increases with the increase of environmental temperature.Droplet deformation increases the trapping area,changes the surrounding flow field,and significantly improves the trapping efficiency of submicron particles.The droplet deformation and thermophoretic mechanism can further improve the capture efficiency of submicron particles.
作者
郭同伟
孙硕硕
王瑞金
朱泽飞
GUO Tongwei;SUN Shuoshuo;WANG Ruijin;ZHU Zefei(School of Mechanical Engineering,Hangzhou Dianzi University,Hangzhou Zhejiang 310018,China)
出处
《杭州电子科技大学学报（自然科学版）》
2022年第1期74-81,共8页
Journal of Hangzhou Dianzi University：Natural Sciences
关键词
变形液滴
热泳效应
亚微颗粒
捕集效率
数值分析
deformed droplets
thermophoresis effect
submicron particle
capture efficiency
numerical analysis
