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A two-layer fluid system separated by a pycnocline in the form of an internal wave is considered. The lower layer is infinitely deep, with a higher density than the upper layer which is bounded above by a flat surface. The fluids are…

偏微分方程分析 · 数学 2019-05-20 Alan C. Compelli , Rossen I. Ivanov

Considered in this paper is a bi-directional model for the propagation of interfacial capillary-gravity waves in a two-layer system of fluids with rigid lid condition for the upper layer and lower layer with a much larger or infinite depth.…

偏微分方程分析 · 数学 2020-04-28 A. Durán

In the seminal work of Benjamin,\cite{Ben} in the late 70's, he has derived the ubiquitous Benjamin model, which is a reduced model in the theory of water waves. Notably, it contains two parameters in its dispersion part and under some…

偏微分方程分析 · 数学 2024-08-30 Sevdzhan Hakkaev , Milena Stanislavova , Atanas G. Stefanov

We study the well-posedness issue of the intermediate long wave equation (ILW) on both the real line and the circle. By applying the gauge transform for the Benjamin-Ono equation (BO) and adapting the $L^2$ well-posedness argument for BO by…

偏微分方程分析 · 数学 2024-07-16 Andreia Chapouto , Guopeng Li , Tadahiro Oh , Didier Pilod

This paper is concerned with a two dimensional Whitham-Boussinesq system modelling surface waves of an inviscid incompressible fluid layer. We prove that the associated Cauchy problem is well-posed for initial data of low regularity, with…

偏微分方程分析 · 数学 2022-06-24 Achenef Tesfahun

This article is concerned with infinite depth gravity water waves with constant vorticity in two space dimensions. We consider this system expressed in position-velocity potential holomorphic coordinates. We show that, for low-frequency…

偏微分方程分析 · 数学 2022-07-19 Mihaela Ifrim , James Rowan , Daniel Tataru , Lizhe Wan

The Benjamin-Ono equation describes the propagation of internal waves in a stratified fluid. In the present work, we study large time dynamics of its regular solutions via some probabilistic point of view. We prove the existence of an…

偏微分方程分析 · 数学 2021-08-20 Mouhamadou Sy

In this paper, we establish the unconditional deep-water limit of the intermediate long wave equation (ILW) to the Benjamin-Ono equation (BO) in low-regularity Sobolev spaces on both the real line and the circle. Our main tool is new…

偏微分方程分析 · 数学 2025-02-25 Justin Forlano , Guopeng Li , Tengfei Zhao

We present a numerical study of essentially nonlinear dynamics of surface gravity waves on deep water with constant vorticity using governing equations in conformal coordinates. The dispersion relation of surface gravity waves on shear flow…

流体动力学 · 物理学 2022-11-01 A. S. Dosaev , M. I. Shishina , Yu. I. Troitskaya

Consideration is given to three different full dispersion Boussinesq systems arising as asymptotic models in the bi-directional propagation of weakly nonlinear surface waves in shallow water. We prove that, under a non-cavitation condition…

偏微分方程分析 · 数学 2022-03-28 Martin Oen Paulsen

This survey is focused on two asymptotic models for internal waves, the Benjamin-Ono (BO) and Intermediate Long Wave (ILW) equations that are integrable by inverse scattering techniques (IST). After recalling briefly their derivations we…

偏微分方程分析 · 数学 2018-11-22 Jean-Claude Saut

A model for internal interfacial waves between two layers of fluid in the presence of current and variable bottom is studied in the flat-surface approximation. Fluids are assumed to be incompressible and inviscid. Another assumption is that…

斑图形成与孤子 · 物理学 2025-07-08 Rossen Ivanov , Lyudmila Ivanova

We derive rigorously from the water waves equations new irrotational shallow water models for the propagation of surface waves in the case of uneven topography in horizontal dimensions one and two. The systems are made to capture the…

偏微分方程分析 · 数学 2023-11-17 Louis Emerald , Martin Oen Paulsen

We rigorously justify in 3D the main asymptotic models used in coastal oceanography, including: shallow-water equations, Boussinesq systems, Kadomtsev-Petviashvili (KP) approximation, Green-Naghdi equations, Serre approximation and…

偏微分方程分析 · 数学 2016-03-08 Borys Alvarez-Samaniego , David Lannes

We consider a density-stratified fluid composed of two immiscible layers separated by a sharp interface. We study the regime of long internal waves interacting with modulated surface wave packets and describe their resonant interaction by a…

偏微分方程分析 · 数学 2024-08-22 Adilbek Kairzhan , Christopher Kennedy , Catherine Sulem

Considered here are two systems of equations modeling the two-way propagation of long-crested, long-wavelength internal waves along the interface of a two-layer system of fluids in the Benjamin-Ono and the Intermediate Long-Wave regime,…

流体动力学 · 物理学 2023-08-01 Jerry Bona , Angel Duran , Dimitrios Mitsotakis

In this paper, we investigate the time of existence of the solutions to two full dispersion models derived from the water waves equations in the shallow water regime: the Whitham equation and a Whitham-Boussinesq system in dimension one and…

偏微分方程分析 · 数学 2025-09-23 Didier Pilod , Sigmund Selberg , Nadia Skoglund Taki , Achenef Tesfahun

In this paper, we first extend the explicit formula \cite{gerard2023explicit} for the classical Benjamin-Ono equation to each flow of the Benjamin-Ono hierarchy on line. We then use this representation to derive two main applications.…

偏微分方程分析 · 数学 2026-04-23 Patrick Gérard , Jiao He

In this paper, we derive asymptotic models for the propagation of two and three-dimensional gravity waves at the free surface and the interface between two layers of immiscible fluids of different densities, over an uneven bottom. We assume…

偏微分方程分析 · 数学 2021-11-18 Vincent Duchene

The paper is concerned with the numerical approximation of the Intermediate Long Wave and Benjamin-Ono systems, that serve as models for the propagation of interfacial internal waves in a two-layer fluid system in particular physical…

数值分析 · 数学 2021-04-21 Vassilios A. Dougalis , Angel Durán , Leetha Saridaki
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