https://scholars.lib.ntu.edu.tw/handle/123456789/625417
標題: | Dynamic coalescence of two charged droplets with deflected angles in the presence of electric fields | 作者: | He X Zhang B.-X Wang Y.-F Zhang Y.-Y Yang Y.-R Wang X.-D DUU-JONG LEE |
關鍵字: | Charge transfer; Charged droplets; Critical Electric field; Deflected angles; Electrocoalescence | 公開日期: | 2022 | 卷: | 353 | 來源出版物: | Journal of Molecular Liquids | 摘要: | The electrocoalescence dynamics of two charged droplets with different deflected angles are studied via molecular dynamics simulations. The simulated results show that under a weak electric field, these adjacent droplets can realize the complete coalescence at the deflected angles of 0° and 50°, but cannot realize that at the deflected angle of 90°. As the electric field strength increases to a critical value, owing to escaped ions, a secondary droplet is ejected from coalescing droplet, namely the partial coalescence. However, as the field strength far exceeds the critical field strength, charge transfer appears between these adjacent droplets by the liquid bridge. These two droplets with enough opposite charges move towards the opposite directions, respectively, such that the formed liquid bridge breaks at the interface again, leading to the appearance of non-coalescence. As a result, the complete-to-non coalescence transition is triggered by the strong electric field. © 2022 Elsevier B.V. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85125277638&doi=10.1016%2fj.molliq.2022.118812&partnerID=40&md5=5429f7c975d8fe568d847433ea91c069 https://scholars.lib.ntu.edu.tw/handle/123456789/625417 |
ISSN: | 01677322 | DOI: | 10.1016/j.molliq.2022.118812 | SDG/關鍵字: | Coalescence; Drops; Electric fields; Flocculation; Molecular dynamics; Charged droplet; Critical electric field; Critical value; Deflected angle; Electric field strength; Electrocoalescence; Liquid bridge; Secondary droplets; Simulated results; Strength increase; Charge transfer |
顯示於: | 化學工程學系 |
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