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This paper considers the propagation of shallow-water solitary and nonlinear periodic waves over a gradual slope with bottom friction in the framework of a variable-coefficient Korteweg-de Vries equation. We use the Whitham averaging…

斑图形成与孤子 · 物理学 2007-09-23 G. A. El , R. H. J. Grimshaw , A. M. Kamchatnov

All solutions of the Korteweg -- de Vries equation that are bounded on the real line are physically relevant, depending on the application area of interest. Usually, both analytical and numerical approaches consider solution profiles that…

数学物理 · 物理学 2015-06-16 Thomas Trogdon , Bernard Deconinck

In this paper we review the physical relevance of a Korteweg-de Vries (KdV) equation with higher-order dispersion terms which is used in the applied sciences and engineering. We also present exact traveling wave solutions to this…

斑图形成与孤子 · 物理学 2018-10-04 Stefan C. Mancas , Willy A. Hereman

We consider travelling internal waves in a two-layer fluid with linear shear currents from the viewpoint of the extended Korteweg-de Vries (eKdV) equation derived from a strongly-nonlinear long-wave model. Using an asymptotic…

流体动力学 · 物理学 2025-05-01 Nerijus Sidorovas , Dmitri Tseluiko , Wooyoung Choi , Karima Khusnutdinova

The truncated Korteweg-De Vries (TKdV) system, a shallow-water wave model with Hamiltonian structure that exhibits weakly turbulent dynamics, has been found to accurately predict the anomalous wave statistics observed in recent laboratory…

流体动力学 · 物理学 2022-05-10 Hui Sun , Nicholas J. Moore

In a recent paper, Kenig, Ponce and Vega study the low regularity behavior of the focusing nonlinear Schr\"odinger (NLS), focusing modified Korteweg-de Vries (mKdV), and complex Korteweg-de Vries (KdV) equations. Using soliton and breather…

偏微分方程分析 · 数学 2007-05-23 Michael Christ , James Colliander , Terence Tao

The nolinear hydrodynamic equations of the surface of a liquid drop are shown to be directly connected to Korteweg de Vries (KdV, MKdV) systems, giving traveling solutions that are cnoidal waves. They generate multiscale patterns ranging…

流体动力学 · 物理学 2009-11-06 Andrei Ludu , Jerry P. Draayer

We consider two physically and mathematically distinct regularization mechanisms of scalar hyperbolic conservation laws. When the flux is convex, the combination of diffusion and dispersion are known to give rise to monotonic and…

斑图形成与孤子 · 物理学 2017-03-14 G. A. El , M. A. Hoefer , M. Shearer

In this paper we employ three recent analytical approaches to investigate the possible classes of traveling wave solutions of some members of a family of so-called short-pulse equations (SPE). A recent, novel application of phase-plane…

数学物理 · 物理学 2015-06-19 G. Gambino , U. Tanriver , P. Guha , A. Ghose Choudhury , S. Roy Choudhury

Generalized solitary waves with exponentially small non-decaying far field oscillations have been studied in a range of singularly-perturbed differential equations, including higher-order Korteweg-de Vries (KdV) equations. Many of these…

数学物理 · 物理学 2018-12-24 Nalini Joshi , Christopher J. Lustri

We investigate regularity properties of the solution map for the intermediate long wave equation (ILW) on the real line. More precisely, we study the scaled ILW which was shown to converge to the Korteweg-de Vries equation (KdV) in…

偏微分方程分析 · 数学 2026-02-25 Andreia Chapouto , Benjamin Harrop-Griffiths , Guopeng Li , Tadahiro Oh

The estimate of individual wave run-up is especially important for tsunami warning and risk assessment as it allows to evaluate the inundation area. Here as a model of tsunami we use the long single wave of positive polarity. The period of…

流体动力学 · 物理学 2020-02-20 Ahmed Abdalazeez , Ira Didenkulova , Denys Dutykh

The Korteweg-de Vries (KdV) equation is known as a universal equation describing various long waves in dispersive systems. In this article, we prove that in a certain scaling regime, a large class of rough solutions to the Boussinesq…

偏微分方程分析 · 数学 2024-04-12 Younghun Hong , Changhun Yang

This paper sheds new light on the stability properties of solitary wave solutions associated with models of Korteweg-de Vries and Benjamin\&Bona\&Mahoney type, when the dispersion is very lower. Via an approach of compactness, analyticity…

偏微分方程分析 · 数学 2018-03-14 Jaime Angulo Pava

Recent laboratory experiments of Bolles et al. (2019) demonstrate that an abrupt change in bottom topography can trigger anomalous statistics in randomized surface waves. Motivated by these observations, Majda et al. (2019) developed a…

流体动力学 · 物理学 2020-01-07 M. N. J. Moore , C. Tyler Bolles , Andrew J. Majda , Di Qi

We study the dispersive blow-up phenomena for the Schr\"odinger-Korteweg-de Vries (S-KdV) system. Roughly, dispersive blow-up has being called to the development of point singularities due to the focussing of short or long waves. In…

偏微分方程分析 · 数学 2018-12-07 Felipe Linares , Jose Manuel Palacios

Stochastically perturbed Korteweg-de Vries (KdV) equations are widely used to describe the effect of random perturbations on coherent solitary waves. We present a collective coordinate approach to describe the effect on coherent solitary…

斑图形成与孤子 · 物理学 2021-08-11 Madeleine Cartwright , Georg A. Gottwald

We study wave turbulence in shallow water flows in numerical simulations using two different approximations: the shallow water model, and the Boussinesq model with weak dispersion. The equations for both models were solved using periodic…

流体动力学 · 物理学 2015-06-17 P. Clark di Leoni , P. J. Cobelli , P. D. Mininni

Using the Darboux transformation for the Korteweg-de Vries equation, we construct and analyze exact solutions describing the interaction of a solitary wave and a traveling cnoidal wave. Due to their unsteady, wavepacket-like character,…

斑图形成与孤子 · 物理学 2023-04-26 Mark A. Hoefer , Ana Mucalica , Dmitry E. Pelinovsky

The work presented here emanates from questions arising from experimental observations of the propagation of surface water waves. The experiments in question featured a periodically moving wavemaker located at one end of a flume that…

可精确求解与可积系统 · 物理学 2019-06-13 Jerry L. Bona , Jonatan Lenells