Self-propulsion dynamics of small droplets on general surfaces with curvature gradient
文献类型：期刊论文
| 作者 | Chen, Yujuan; Xu, Xianmin2 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 33期号:8页码:13 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0059185 |
| 英文摘要 | We study theoretically the self-propulsion dynamics of a small droplet on general curved surfaces by a variational approach. A new reduced model is derived based on careful computations for the capillary energy and the viscous dissipation in the system. The model describes quantitatively the spontaneous motion of a liquid droplet on general surfaces. In particular, it recovers previous models for droplet motion on the outside surface of a cone. In this case, we derive a scaling law of the displacement s similar to t(1/3) of a droplet with respect to time t by asymptotic analysis. Theoretical results are in good agreement with experiments in previous literature without adjusting the friction coefficient in the model. |
| 资助项目 | NSFC[11971469] ; National Key R&D Program of China[2018YFB0704304] ; National Key R&D Program of China[2018YFB0704300] |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000683519700006 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/59074]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Xu, Xianmin |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, LSEC, Inst Computat Math & Sci Engn Comp, NCMIS,AMSS, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yujuan,Xu, Xianmin. Self-propulsion dynamics of small droplets on general surfaces with curvature gradient[J]. PHYSICS OF FLUIDS,2021,33(8):13. |
| APA | Chen, Yujuan,&Xu, Xianmin.(2021).Self-propulsion dynamics of small droplets on general surfaces with curvature gradient.PHYSICS OF FLUIDS,33(8),13. |
| MLA | Chen, Yujuan,et al."Self-propulsion dynamics of small droplets on general surfaces with curvature gradient".PHYSICS OF FLUIDS 33.8(2021):13. |
入库方式： OAI收割
来源：数学与系统科学研究院
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