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Considered herein is a class of Boussinesq systems of Bona-Smith type that describe water waves in bounded two-dimensional domains with slip-wall boundary conditions and variable bottom topography. Such boundary conditions are necessary in…

数值分析 · 数学 2024-11-18 Dimitrios Antonopoulos , Dimitrios Mitsotakis

In this article we consider the stability and damping problem for the 2D Boussinesq equations with partial dissipation near a two parameter family of stationary solutions which includes Couette flow and hydrostatic balance. In the first…

偏微分方程分析 · 数学 2020-04-20 Christian Zillinger

The aim of this paper is to survey and complete, mostly by numerical simulations, results on a remarkable Boussinesq system describing weakly nonlinear, long surface water waves. It is the only member of the so-called (abcd) family of…

偏微分方程分析 · 数学 2024-02-28 C. Klein , J. -C. Saut

We consider a two-dimensional, incompressible, inviscid fluid with variable density, subject to the action of gravity. Assuming a stable equilibrium density profile, we adopt the so-called Boussinesq approximation, which neglects density…

偏微分方程分析 · 数学 2025-07-15 R. Bianchini , A. Maspero , S. Pasquali

A higher-order nonlinear Boussinesq system with a time-dependent boundary delay is considered. Sufficient conditions are presented to ensure the well-posedness of the problem by utilizing Kato's variable norm technique and the Fixed-Point…

偏微分方程分析 · 数学 2025-05-02 G. Bautista , R. de A. Capistrano--Filho , B. Chentouf , O. Sierra Fonseca

Considered herein are a number of variants of the Boussinesq type systems modeling surface water waves. Such equations were derived by different authors to describe the two-way propagation of long gravity waves. A question of existence of…

偏微分方程分析 · 数学 2022-02-07 Evgueni Dinvay

Weakly non-linear stability of regimes of free hydromagnetic thermal convection in a rotating horizontal layer with free electrically conducting boundaries is considered in the Boussinesq approximation. Perturbations are supposed to involve…

混沌动力学 · 物理学 2015-05-13 V. Zheligovsky

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

This paper establishes the nonlinear stability of the Couette flow for the 2D Boussinesq equations with only vertical dissipation. The Boussinesq equations concerned here model buoyancy-driven fluids such as atmospheric and oceanographic…

偏微分方程分析 · 数学 2020-04-21 Wen Deng , Jiahong Wu , Ping Zhang

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

Coupled Boussinesq equations describe long weakly-nonlinear longitudinal strain waves in a bi-layer with a soft bonding between the layers (e.g. a soft adhesive). From the mathematical viewpoint, a particularly difficult case appears when…

斑图形成与孤子 · 物理学 2022-11-30 K. R. Khusnutdinova , M. R. Tranter

Coupled Boussinesq equations describe long weakly-nonlinear longitudinal strain waves in a bi-layer with a soft bonding between the layers (e.g. a soft adhesive). From the mathematical viewpoint, a particularly difficult case appears when…

偏微分方程分析 · 数学 2022-10-28 K. R. Khusnutdinova , M. R. Tranter

This paper is devoted to the study of the long wave approximation for water waves under the influence of the gravity and a Coriolis forcing. We start by deriving a generalization of the Boussinesq equations in 1D (in space) and we…

偏微分方程分析 · 数学 2016-09-12 Benjamin Melinand

We consider the 2D Boussinesq equations with a velocity damping term in a strip $\mathbb{T}\times[-1,1]$, with impermeable walls. In this physical scenario, where the \textit{Boussinesq approximation} is accurate when density/temperature…

偏微分方程分析 · 数学 2018-10-02 Angel Castro , Diego Córdoba , Daniel Lear

The purpose of this paper is to extend the store of models able to support integrable defects by investigating the two-dimensional Boussinesq nonlinear wave equation. As has been previously noted in many examples, insisting that a defect…

可精确求解与可积系统 · 物理学 2023-06-07 E. Corrigan , C. Zambon

Stationary expansion shocks have been recently identified as a new type of solution to hyperbolic conservation laws regularized by non-local dispersive terms that naturally arise in shallow-water theory. These expansion shocks were studied…

斑图形成与孤子 · 物理学 2017-11-01 G. A. El , M. A. Hoefer , M. Shearer

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

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 study, the numerical analysis of a specific fluid-solid interaction problem is detailed. The weakly nonlinear Boussinesq system is considered with the addition of a solid object lying on the flat bottom, allowed to move horizontally…

数值分析 · 数学 2018-05-21 Krisztian Benyo

In this paper, we investigate the long-time behavior of the two-dimensional incompressible Boussinesq system with kinematic viscosity in a periodic channel, focusing on instability and asymptotic stability near hydrostatic equilibria.…

偏微分方程分析 · 数学 2024-04-02 Jaemin Park