IMECH-IR  > 流固耦合系统力学重点实验室
Self-focusing dynamics of patches of ripples
Milewski PA; Wang Z(王展); Wang, Z (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Source PublicationPHYSICA D-NONLINEAR PHENOMENA
2016
Conference NameWorkshop on Dispersive Hydrodynamics - The Mathematics of Dispersive Shock Waves and Applications
Conference DateMAY 17-22, 2015
Conference PlaceBanff Int Res Station, Banff, CANADA
Abstract

The dynamics of focussing of extended patches of nonlinear capillary gravity waves within the primitive fluid dynamic equations is presented. It is found that, when the envelope has certain properties, the patch focusses initially in accordance to predictions from nonlinear Schrodinger equation, and focussing can concentrate energy to the vicinity of a point or a curve on the fluid surface. After initial focussing, other effects dominate and the patch breaks up into a complex set of localised structures lumps and breathers - plus dispersive radiation. We perform simulations both in the inviscid regime and for small viscosities. Lastly we discuss throughout the similarities and differences between the dynamics of ripple patches and self-focussing light beams. (C) 2016 The Authors. Published by Elsevier B.V.

KeywordRipples Focussing Wavepackets Nonlinear Schrodinger-equation Capillary Solitary Waves Water-waves Gravity Flows Evolution Beams
WOS IDWOS:000381534400017
DepartmentLMFS水环境流体力学(LEM)
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Indexed ByCPCI-S
Language英语
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60179
Collection流固耦合系统力学重点实验室
Corresponding AuthorWang, Z (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Milewski PA,Wang Z,Wang, Z . Self-focusing dynamics of patches of ripples[C],2016.
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