Shallow-water rogue waves: An approach based on complex solutions of the Korteweg-de Vries equation.

Phys Rev E

Optical Sciences Group, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2600, Australia.

Published: May 2019

AI Article Synopsis

  • The study presents exact mathematical solutions to the Korteweg-de Vries equation, focusing on the formation of rogue waves in shallow water.
  • These waves exhibit a significantly greater amplitude amplification factor in shallow water compared to deep water, indicating potential risks for coastal regions.
  • The findings have implications beyond fluid dynamics, including applications in nonlinear physics fields like optics, crystal growth, and quantum mechanics.

Article Abstract

The formation of rogue waves in shallow water is presented in this Rapid Communication by providing the three lowest-order exact rational solutions to the Korteweg-de Vries (KdV) equation. They have been obtained from the modified KdV equation by using the complex Miura transformation. It is found that the amplitude amplification factor of such waves formed in shallow water is much larger than the amplitude amplification factor of those occurring in deep water. These solutions clearly demonstrate a potential hazard for coastal areas. They can also provide a solid mathematical basis for the existence of abnormally large-amplitude waves in other branches of nonlinear physics such as optics, unidirectional crystal growth, and in quantum mechanics.

Download full-text PDF

Source
http://dx.doi.org/10.1103/PhysRevE.99.050201DOI Listing

Publication Analysis

Top Keywords

rogue waves
8
solutions korteweg-de
8
korteweg-de vries
8
shallow water
8
kdv equation
8
amplitude amplification
8
amplification factor
8
shallow-water rogue
4
waves
4
waves approach
4

Similar Publications

Transcranial magnetic stimulation (TMS) is a non-invasive, FDA-cleared treatment for neuropsychiatric disorders with broad potential for new applications, but the neural circuits that are engaged during TMS are still poorly understood. Recordings of neural activity from the corticospinal tract provide a direct readout of the response of motor cortex to TMS, and therefore a new opportunity to model neural circuit dynamics. The study goal was to use epidural recordings from the cervical spine of human subjects to develop a computational model of a motor cortical macrocolumn through which the mechanisms underlying the response to TMS, including direct and indirect waves, could be investigated.

View Article and Find Full Text PDF
Article Synopsis
  • - This work explores a rogue wave solution strategy based on the Hirota bilinear hypothesis to develop various soliton wave solutions for the generalized Hirota-Satsuma-Ito condition.
  • - The study examines multiple types of soliton waves, including first to fourth-order waves, and analyzes properties related to lump solutions and the Hessian lattice.
  • - Results are validated through simulations that produce 3D, density, and 2D graphs, suggesting new insights into traveling wave theory.
View Article and Find Full Text PDF
Article Synopsis
  • This paper explores the properties of modulational instability (MI) and rogue waves (RWs) using generalized fractional nonlinear Schrödinger (FNLS) equations with rational potentials, focusing on the relationship between wavenumber and instability growth rates.
  • The study confirms through numerical simulations that MI occurs in focusing conditions and reveals how certain time-dependent potentials lead to controllable RWs in both cubic and quintic FNLS equations.
  • Additionally, it investigates the generation of higher-order RWs and identifies the conditions for their emergence, providing insights into the interaction between system parameters and potentials, which could inform future nonlinear wave research.
View Article and Find Full Text PDF

Hydrodynamic modulation instability triggered by a two-wave system.

Chaos

October 2024

Disaster Prevention Research Institute, Kyoto University, Uji, Kyoto 611-0011, Japan.

Article Synopsis
  • Modulation instability (MI) causes regular nonlinear wave trains to break down, potentially resulting in localized phenomena like rogue waves across various nonlinear dispersive media, including hydrodynamics and optics.
  • The classical MI dynamics can start with small-amplitude sidebands around a main wave peak, often visualized as a three-wave interaction setup in experiments, but more complex patterns can emerge through breather solutions of the nonlinear Schrödinger equation (NLSE).
  • This study explores MI in deep-water surface gravity waves, demonstrating that it can be initiated by just a single unstable sideband, yielding experimental results that align closely with nonlinear simulations, while also indicating shifts in focusing cycle behavior observed in longer-term wave evolution.
View Article and Find Full Text PDF

Modulation instability and rogue waves for two and three dimensional nonlinear Klein-Gordon equation.

Chaos

September 2024

School of Mathematics, Key Laboratory of Mathematics for Nonlinear Science, Fudan University, Shanghai 200433, People's Republic of China.

Article Synopsis
  • The analysis focuses on the modulation instability of both 2D and 3D nonlinear Klein-Gordon equations, highlighting that the instability relates to dispersion and plane wave wavenumbers.
  • The study explores the construction of N-breathers from 2N-solitons and establishes conditions for their regularity, confirming that breather behaviors align with instability analysis.
  • Advanced techniques reveal high-order rogue waves for the nonlinear Klein-Gordon equations, with findings showing dynamic similarities to the nonlinear Schrödinger equation, indicating fundamental existence of rogue waves through specific parameter choices.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!