Capillary-gravity waves on a dielectric fluid of finite depth under normal electric field

doi:10.1016/j.euromechflu.2019.04.007

IMECH-IR > 流固耦合系统力学重点实验室

	Capillary-gravity waves on a dielectric fluid of finite depth under normal electric field
	Gao T; Doak A; Vanden-Broeck JM; Wang Z(王展)
通讯作者	Wang, Zhan(zwang@imech.ac.cn)
发表期刊	EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
	2019-09-01
卷号	77 页码:98-107
ISSN	0997-7546
摘要	In this work we consider two-dimensional capillary-gravity waves propagating under the influence of a vertical electric field on a dielectric of finite depth bounded above by a perfectly conducting and hydrodynamically passive fluid. Both linear and weakly nonlinear theories are developed, and long-wave model equations are derived based on the analyticity of the Dirichlet-Neumann operator. Fully nonlinear computations are carried out by using a time-dependent conformal mapping method. Solitary waves are found, and their stability characteristics subject to longitudinal perturbations are studied numerically. The shedding of stable solitary waves is achieved by moving a Gaussian pressure on the free surface with the speed close to a phase speed minimum and removing the pressure after a period of time. The novel result shows that a depression bright solitary wave and an elevation generalized solitary wave co-exist in the solitary-wave excitation. (C) 2019 Elsevier Masson SAS. All rights reserved.
关键词	Surface wave Solitary wave Electrohydrodynamics Capillary wave
DOI	10.1016/j.euromechflu.2019.04.007
收录类别	SCI
语种	英语
WOS记录号	WOS:000474318400009
关键词[WOS]	KELVIN-HELMHOLTZ INSTABILITY ; EXACT EVOLUTION-EQUATIONS ; SOLITARY WAVES ; DYNAMICS ; INTERFACE ; WATER
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	EPSRC, UK[EP/M507970/1] ; EPSRC, UK[EP/N018559/1] ; National Natural Science Foundation of China[11772341] ; CAS, China[QYZDBSSW-SYS015] ; Chinese Academy of Sciences, China[XDB22040203] ; CAS Center for Excellence in Complex System Mechanics
项目资助者	EPSRC, UK ; National Natural Science Foundation of China ; CAS, China ; Chinese Academy of Sciences, China ; CAS Center for Excellence in Complex System Mechanics
论文分区	Q3
力学所作者排名	1
RpAuthor	Wang, Zhan
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/79428
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Gao T,Doak A,Vanden-Broeck JM,et al. Capillary-gravity waves on a dielectric fluid of finite depth under normal electric field[J]. EUROPEAN JOURNAL OF MECHANICS B-FLUIDS,2019,77:98-107.
APA	Gao T,Doak A,Vanden-Broeck JM,&王展.(2019).Capillary-gravity waves on a dielectric fluid of finite depth under normal electric field.EUROPEAN JOURNAL OF MECHANICS B-FLUIDS,77,98-107.
MLA	Gao T,et al."Capillary-gravity waves on a dielectric fluid of finite depth under normal electric field".EUROPEAN JOURNAL OF MECHANICS B-FLUIDS 77(2019):98-107.

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