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)
Corresponding AuthorWang, Zhan(zwang@imech.ac.cn)
Source PublicationEUROPEAN JOURNAL OF MECHANICS B-FLUIDS
2019-09-01
Volume77Pages:98-107
ISSN0997-7546
AbstractIn 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.
KeywordSurface wave Solitary wave Electrohydrodynamics Capillary wave
DOI10.1016/j.euromechflu.2019.04.007
Indexed BySCI
Language英语
WOS IDWOS:000474318400009
WOS KeywordKELVIN-HELMHOLTZ INSTABILITY ; EXACT EVOLUTION-EQUATIONS ; SOLITARY WAVES ; DYNAMICS ; INTERFACE ; WATER
WOS Research AreaMechanics ; Physics
WOS SubjectMechanics ; Physics, Fluids & Plasmas
Funding ProjectEPSRC, 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
Funding OrganizationEPSRC, UK ; National Natural Science Foundation of China ; CAS, China ; Chinese Academy of Sciences, China ; CAS Center for Excellence in Complex System Mechanics
ClassificationQ3
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79429
Collection流固耦合系统力学重点实验室
Recommended Citation
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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