Self-focusing dynamics of patches of ripples | |
Milewski PA; Wang Z(王展)![]() | |
Source Publication | PHYSICA D-NONLINEAR PHENOMENA |
2016 | |
Conference Name | Workshop on Dispersive Hydrodynamics - The Mathematics of Dispersive Shock Waves and Applications |
Conference Date | MAY 17-22, 2015 |
Conference Place | Banff 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. |
Keyword | Ripples Focussing Wavepackets Nonlinear Schrodinger-equation Capillary Solitary Waves Water-waves Gravity Flows Evolution Beams |
WOS ID | WOS:000381534400017 |
Department | LMFS水环境流体力学(LEM) |
URL | 查看原文 |
Indexed By | CPCI-S |
Language | 英语 |
Citation statistics | |
Document Type | 会议论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/60179 |
Collection | 流固耦合系统力学重点实验室 |
Corresponding Author | Wang, 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]PHYSICA D-NONLINEAR PHENOMENA,2016. |
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Cp2016-003.pdf(2298KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Download |
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