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By using the multiple scale method with the simultaneous introduction of multiple times, we study the propagation of long surface-waves in a shallow inviscid fluid. As a consequence of the requirements of scale invariance and absence of…

patt-sol · Physics 2009-10-28 R. A. Kraenkel , M. A. Manna , J. G. Pereira

We consider in this paper the well-posedness for the Cauchy problem associated to two-dimensional dispersive systems of Boussinesq type which model weakly nonlinear long wave surface waves. We emphasize the case of the {\it strongly…

Analysis of PDEs · Mathematics 2011-04-12 Felipe Linares , Didier Pilod , Jean-Claude Saut

This study deals with higher-ordered asymptotic equations for the water-waves problem. We considered the higher-order/extended Boussinesq equations over a flat bottom topography in the well-known long wave regime. Providing an existence and…

Analysis of PDEs · Mathematics 2022-02-03 Bashar Bhorbatly , Ralph Lteif , Samer Israwi , Stéphane Gerbi

The KdV equation can be derived in the shallow water limit of the Euler equations. Over the last few decades, this equation has been extended to include higher order effects. Although this equation has only one conservation law, exact…

Pattern Formation and Solitons · Physics 2018-04-06 Piotr Rozmej , Anna Karczewska , Eryk Infeld

The Boussinesq $abcd$ system is a 4-parameter set of equations posed in $\mathbb R_t\times\mathbb R_x$, originally derived by Bona, Chen and Saut as first-order 2-wave approximations of the incompressible and irrotational, two-dimensional…

Analysis of PDEs · Mathematics 2025-12-30 André de Laire , Olivier Goubet , María Eugenia Martínez , Claudio Muñoz , Felipe Poblete

In this paper we address a particular fluid-solid interaction problem in which the solid object is lying at the bottom of a layer of fluid and moves under the forces created by waves travelling on the surface of this layer. More precisely,…

Analysis of PDEs · Mathematics 2018-05-03 Krisztian Benyo

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…

Fluid Dynamics · Physics 2020-01-07 M. N. J. Moore , C. Tyler Bolles , Andrew J. Majda , Di Qi

We generalize the non-linear one-dimensional equation of a fluid layer for any depth and length as an infinite order differential equation for the steady waves. This equation can be written as a q-differential one, with its general solution…

q-alg · Mathematics 2009-10-30 A. Ludu , R. A. Ionescu , W. Greiner

This paper deals with bathymetry-oriented optimization in the case of long waves with small amplitude. Under these two assumptions, the free-surface incompressible Navier-Stokes system can be written as a wave equation where the bathymetry…

Optimization and Control · Mathematics 2020-03-23 Pierre-Henri Cocquet , Sebastián Riffo , Julien Salomon

In this article we deal with a class of geometric inverse problem for bottom detection by one single measurement on the free surface in water--waves. We found upper and lower bounds for the size of the region enclosed between two different…

Analysis of PDEs · Mathematics 2020-12-02 R. Lecaros , J. López-Ríos , J. H. Ortega , S. Zamorano

This paper investigates the geometric inverse problem of recovering the bottom shape from surface measurements of water waves. Using the general water-waves system on a bounded subdomain of the fluid domain, we address this inverse problem,…

Analysis of PDEs · Mathematics 2026-04-08 Noureddine Lamsahel , Lionel Rosier

A single incompressible, inviscid, irrotational fluid medium bounded by a free surface and varying bottom is considered. The Hamiltonian of the system is expressed in terms of the so-called Dirichlet-Neumann operators. The equations for the…

Fluid Dynamics · Physics 2018-11-09 Alan Compelli , Rossen I. Ivanov , Michail D. Todorov

We consider the extended Korteweg-de Vries (eKdV) equation as a model for long moderately nonlinear surface water waves. In the slow time formulation this equation generates fast propagating resonant radiation due to the non-convexity of…

Pattern Formation and Solitons · Physics 2026-02-12 Benjamin Martin , Dmitri Tseluiko , Karima Khusnutdinova

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…

Exactly Solvable and Integrable Systems · Physics 2019-06-13 Jerry L. Bona , Jonatan Lenells

In order to investigate corrections to the common KdV approximation for surface water waves in a canal, we derive modulation equations for the evolution of long wavelength initial data. We work in Lagrangian coordinates. The equations which…

Analysis of PDEs · Mathematics 2007-05-23 J. Douglas Wright

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…

Fluid Dynamics · Physics 2022-05-10 Hui Sun , Nicholas J. Moore

In the paper a new nonlinear equation describing shallow water waves with the topography of the bottom directly taken into account is derived. This equation is valid in the weakly nonlinear, dispersive and long wavelength limit. Some…

Pattern Formation and Solitons · Physics 2014-05-22 Anna Karczewska , Piotr Rozmej , Łukasz Rutkowski

The aim of this article is to derive surface wave models in the presence of surface tension and viscosity. Using the Navier-Stokes equations with a free surface, flat bottom and surface tension, we derive the viscous 2D Boussinesq system…

Fluid Dynamics · Physics 2015-11-06 Hervé Le Meur

This paper is devoted to investigating the rotating Boussinesq equations of inviscid, incompressible flows with both fast Rossby waves and fast internal gravity waves. The main objective is to establish a rigorous derivation and…

Analysis of PDEs · Mathematics 2023-04-18 Claude Bardos , Xin Liu , Edriss S. Titi

The evolution of a solitary wave with very weak nonlinearity which was originally investigated by Miles [4] is revisited. The solution for a one-dimensional gravity wave in a water of uniform depth is considered. This leads to finding the…

Pattern Formation and Solitons · Physics 2017-04-11 S. G. Sajjadi , T. A. Smith