Abstract Collecting fog from atmospheric environment or industrial processes can provide supplementary water resource. However, the collection efficiency of conventional inertial-impaction fog collectors is not satisfactory. Charging fog droplets by corona discharge process and collecting fog in an electric field are promising methods to enhance the collection efficiency of conventional inertial-impaction fog collectors. Several fog collectors consisting of wire arrays are proposed and these wires play the role of electrodes. A numerical model is established to reveal the mechanism of droplets charging and migration behaviors. It is found that charged droplets are repelled by the discharge electrode and attracted by the grounded collection electrode due to the Coulomb force, and accordingly the collection efficiency is enhanced. The collection efficiency enhancement depends on the arrangement of wires. Droplets with a diameter of more than 5 μm can be collected with a high collection efficiency by the newly designed fog collector consisting of discharge, repelling and collection electrodes. The current simulation reveals that the electrostatic force can be applied with suitable designs to realize perfect fog collection.

中文翻译：

---

静电增强集雾器集雾潜力的数值评价

摘要 从大气环境或工业过程中收集雾气可以提供补充水资源。然而，传统的惯性撞击集雾器的收集效率并不令人满意。通过电晕放电过程对雾滴充电和在电场中收集雾是提高传统惯性撞击雾收集器收集效率的有前途的方法。提出了几种由线阵列组成的雾收集器，这些线起到电极的作用。建立了一个数值模型来揭示液滴充电和迁移行为的机制。发现带电液滴在库仑力的作用下被放电电极排斥并被接地的收集电极吸引，从而提高收集效率。收集效率的提高取决于电线的排列。通过由放电电极、排斥电极和收集电极组成的新设计的雾收集器，可以以高收集效率收集直径超过 5 μm 的液滴。目前的模拟表明，静电力可以通过适当的设计来实现完美的雾气收集。