| 题名 | Regulating air cushioning and bubble entrapment in charged droplet impact via external electric fields |
| 作者 | |
| 通讯作者 | Lai, Wuxing; Huang, YongAn |
| 发表日期 | 2023-06-01
|
| DOI | |
| 发表期刊 | |
| ISSN | 1070-6631
|
| EISSN | 1089-7666
|
| 卷号 | 35期号:6 |
| 摘要 | Air cushioning and bubble entrapment are common phenomena observed during low-velocity droplet impact on solid or fluid surfaces, whereby a thin layer of air mediates the lubrication pressure. Previously, it is found that both charging droplets and the application of external electric fields can eliminate air cushioning and bubble entrapment. In this study, we numerically investigate the air cushioning and bubble entrapment in the charged droplet impacting onto a solid surface under external electric fields. It is found that the presence of net charge has a field enhancement effect on polarized charges on the same side while weakening the electric field of polarized charges on the opposite side, which can be linearly superimposed in the atmospheric environment. Based on the mirror charge model, the scaling law of the electric field threshold required for the impact of charged droplets without air cushioning or bubble entrapment is given. A fitting function based on the scaling law shows a good agreement with the phase diagram of a charged droplet impact modes under electric fields. These findings offer valuable insight for applications that rely on charged droplets' impact under electric fields, such as electrohydrodynamic printing and spray coating, to mitigate the negative impact of air cushioning or bubble entrapment. |
| 相关链接 | [来源记录] |
| 收录类别 | |
| 语种 | 英语
|
| 学校署名 | 其他
|
| 资助项目 | National Key Research and Development Program of China[2021YFB3200700]
; National Natural Science Foundation of China["11932009","52175536"]
|
| WOS研究方向 | Mechanics
; Physics
|
| WOS类目 | Mechanics
; Physics, Fluids & Plasmas
|
| WOS记录号 | WOS:001000843600012
|
| 出版者 | |
| ESI学科分类 | PHYSICS
|
| 来源库 | Web of Science
|
| 引用统计 |
被引频次[WOS]：5
|
| 成果类型 | 期刊论文 |
| 条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/549157 |
| 专题 | 工学院_力学与航空航天工程系 |
| 作者单位 | 1.Huazhong Univ Sci & Technol, State Key Lab Intelligent Mfg Equipment & Technol, Wuhan 430074, Peoples R China 2.Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Peoples R China 3.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 |
Tian, Yu,Wang, Baoli,Zhao, Chenyang,et al. Regulating air cushioning and bubble entrapment in charged droplet impact via external electric fields[J]. PHYSICS OF FLUIDS,2023,35(6).
|
| APA |
Tian, Yu.,Wang, Baoli.,Zhao, Chenyang.,Lai, Wuxing.,Guan, Yin.,...&Huang, YongAn.(2023).Regulating air cushioning and bubble entrapment in charged droplet impact via external electric fields.PHYSICS OF FLUIDS,35(6).
|
| MLA |
Tian, Yu,et al."Regulating air cushioning and bubble entrapment in charged droplet impact via external electric fields".PHYSICS OF FLUIDS 35.6(2023).
|
| 条目包含的文件 | 条目无相关文件。 | |||||
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