The occurrence of rogue waves in stratified fluids: A preliminary study

摘要：

　　The nonlinear Schr(o)dinger equation (NLSE) governs the evolution of weakly nonlinear and weakly dispersive wave packets for fluids of both homogeneous and stratified density profiles.The occurrence of solitons (localized pulses) and rogue waves (unexpectedly large displacements from a calm background) requires dispersion and nonlinearity of the same sign.In this preliminary study, the dispersion properties of two typical density profiles, a piecewise constant one and one of constant Brunt-V(a)is(a)l(a) frequency (constant N2) are investigated.Sign change patterns, group velocities and eigenfunctions display dramatically different properties.The choice of density profiles in modeling oceanic internal waves is thus important.

关键词： Stratified Fluids Taylor-Goldstein equation Nonlinear Schr(o)dinger equation (NLSE) Rogue Wave

作者: Eric Tianyang Liu Hiuning Chan Kwok Wing Chow

作者单位: Department of Mechanical Engineering, University of Hong Kong, Pokfulam, Hong Kong

会议类型: 国际会议

会议名称: The Second Conference of Global Chinese Scholars on Hydrodynamics(第二届全球华人水动学学术会议)

会议地点: 江苏 无锡

会议语种:英文

页码: 157-162

在线出版日期: 2016-11-11（万方平台首次上网日期，不代表论文的发表时间）