Self-propulsion dynamics of small droplets on general surfaces with curvature gradient

doi:10.1063/5.0059185

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	Self-propulsion dynamics of small droplets on general surfaces with curvature gradient
	Chen, Yujuan ; Xu, Xianmin 1
	2021-08-01
发表期刊	PHYSICS OF FLUIDS
ISSN	1070-6631
卷号	33 期号:8 页码:13
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.
DOI	10.1063/5.0059185
收录类别	SCI
语种	英语
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
WOS类目	Mechanics ; Physics, Fluids & Plasmas
WOS记录号	WOS:000683519700006
出版者	AMER INST PHYSICS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/59075
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.Chinese Acad Sci, LSEC, Inst Computat Math & Sci Engn Comp, NCMIS,AMSS, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Sch Math Sci, 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.