学术报告第177期—李家玮论文投稿报告

时间：2022年9月19日 周一  13:30

线上：腾讯会议（会议号：669-561-475 密码：123456）

入会链接：https://meeting.tencent.com/dm/m6O3S823sShe

报告人：李家玮 研究生

负责导师：李传 讲师

拟投期刊：Journal of Physics D: Applied Physics

题目：Investigation on the effect of electric field produced by plate electrode on fog dissipation

摘要：Fog dissipation and fog water collection have been of great concern recently. Charge and electric field produced by corona discharge can accelerate the above process by promoting fog droplets collision. In this paper, the effect of charge and electric field on fog droplets collision are analyzed by introducing collision efficiency and kernel. The collision efficiency and kernel represent the collision probability and collision rate of fog droplets, respectively. In addition, an extended trajectory model, including drag force, gravity, electrostatic force and applied electric field force, is developed to calculate the collision efficiency and kernel. The results show that charge can significantly increase the collision efficiency and kernel. However, the collision efficiency between charged drop and neutral droplet under uniform electric field is reduced. The collision efficiency first decreases and then increases to 1.0 with applied electric field strength. Nevertheless, the collision kernel increases with applied electric field strength at all times. This is attributed to the relative values of the electrostatic force, hydrodynamic force and inertial force. The calculated results can be used to optimize the efficiency of fog dissipation and fog water collection.