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Three weakly nonlinear but fully dispersive Whitham-Boussinesq systems for uneven bathymetry are studied. The derivation and discretization of one system is presented. The numerical solutions of all three are compared with wave gauge…

流体动力学 · 物理学 2021-04-13 John D. Carter , Evgueni Dinvay , Henrik Kalisch

In this paper, we investigate the well-posedness of a nonlinear dispersive model with variable coefficients that describes the evolution of surface waves propagating through a one-dimensional shallow water channel of finite length with…

数值分析 · 数学 2025-10-14 Juan Carlos Muñoz Grajales , Deissy Marcela Pizo

In this paper we study some theoretical and numerical issues of the Boussinesq/Full dispersion system. This is a a three-parameter system of pde's that models the propagation of internal waves along the interface of two-fluid layers with…

数值分析 · 数学 2022-01-13 V. A. Dougalis , A. Durán , L. Saridaki

The numerical approximation of some Boussinesq systems in two spatial dimensions is here considered. The differential systems under study are proposed as asymptotic models for the propagation of waves along the interface of two layers of…

数值分析 · 数学 2026-05-05 A. Durán

The simulation of long, nonlinear dispersive waves in bounded domains usually requires the use of slip-wall boundary conditions. Boussinesq systems appearing in the literature are generally not well-posed when such boundary conditions are…

数值分析 · 数学 2022-01-05 Samer Israwi , Henrik Kalisch , Theodoros Katsaounis , Dimitrios Mitsotakis

The aim of this paper is to present a survey and a detailed numerical study on a remarkable Boussinesq system describing weakly nonlinear, long surface water waves. In the one-dimensional case, this system can be viewed as a dispersive…

偏微分方程分析 · 数学 2024-03-20 C. Klein , J. -C. Saut

We consider a Boussinesq system describing one-dimensional internal waves which develop at the boundary between two immiscible fluids, and we restrict to its traveling waves. The method which yields explicitly all the elliptic or degenerate…

斑图形成与孤子 · 物理学 2017-10-18 Hai Yen Nguyen , Fre'de'ric Dias , Robert Conte

Finite volume schemes are commonly used to construct approximate solutions to conservation laws. In this study we extend the framework of the finite volume methods to dispersive water wave models, in particular to Boussinesq type systems.…

经典物理 · 物理学 2020-01-13 Denys Dutykh , Theodoros Katsaounis , Dimitrios Mitsotakis

A generalized version of the $abcd$-Boussinesq class of systems is derived to accommodate variable bottom topography in two-dimensional space. This extension allows for the conservation of suitable energy functionals in some cases and…

流体动力学 · 物理学 2024-06-19 Samer Israwi , Youssef Khalifeh , Dimitrios Mitsotakis

We show that the semi-implicit time discretization approaches previously introduced for multilayer shallow water models for the barotropic case can be also applied to the variable density case with Boussinesq approximation. Furthermore,…

数值分析 · 数学 2021-04-27 Luca Bonaventura , José Garres-Díaz

The Boussinesq system for buoyancy driven fluids couples the momentum equation forced by the buoyancy with the convection-diffusion equation for the temperature. One fundamental issue on the Boussinesq system is the stability problem on…

偏微分方程分析 · 数学 2020-05-28 Oussama Ben Said , Uddhaba Raj Pandey , Jiahong Wu

In this paper a three-parameter family of Boussinesq systems is studied. The systems have been proposed as models of the propagation of long internal waves along the interface of a two-layer system of fluids with rigid-lid condition for the…

数值分析 · 数学 2021-10-27 V. A. Dougalis , A. Duran , L. Saridaki

This paper is devoted to the derivation and mathematical analysis of a wave-structure interaction problem which can be reduced to a transmission problem for a Boussinesq system. Initial boundary value problems and transmission problems in…

偏微分方程分析 · 数学 2021-07-14 D. Bresch , David Lannes , Guy Metivier

The movement of water waves is a topic of interest to researchers from different areas. While their propagation is described by Euler equations, there are instances where simplified models can also provide accurate approximations. A…

数值分析 · 数学 2023-12-27 L. G. Martins , M. V. Flamarion , R. Ribeiro-Jr

We investigate here the interactions of waves governed by a Boussinesq system with a partially immersed body allowed to move freely in the vertical direction. We show that the whole system of equations can be reduced to a transmission…

偏微分方程分析 · 数学 2021-02-16 Geoffrey Beck , David Lannes

In this work, we numerically study the higher-ordered/extended Boussinesq system describing the propagation of water-waves over flat topography. A reformulation of the same order of precision that avoids the calculation of high order…

偏微分方程分析 · 数学 2022-07-04 Ralph Lteif , Stéphane Gerbi

Finite volume schemes are commonly used to construct approximate solutions to conservation laws. In this study we extend the framework of the finite volume methods to dispersive water wave models, in particular to Boussinesq type systems.…

经典物理 · 物理学 2020-02-20 Denys Dutykh , Theodoros Katsaounis , Dimitrios Mitsotakis

This paper deals with the interactions of waves governed by a non-linear dispersive Boussinesq type system with the vertical displacement of a cylindrical floating structure in an axisymmetric without swirl situation. The Boussinesq regime…

偏微分方程分析 · 数学 2026-01-07 Geoffrey Beck , Ewan Contentin , Ludovic Martaud

We consider the `classical' Boussinesq system in one space dimension and its symmetric analog. These systems model two-way propagation of nonlinear, dispersive long waves of small amplitude on the surface of an ideal fluid in a uniform…

数值分析 · 数学 2010-08-26 D. C. Antonopoulos , V. A. Dougalis

We consider a class of Boussinesq systems of Bona-Smith type in two space dimensions approximating surface wave flows modelled by the three-dimensional Euler equations. We show that various initial-boundary-value problems for these systems,…

经典物理 · 物理学 2009-07-29 Vassilios Dougalis , Dimitrios Mitsotakis , Jean-Claude Saut
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