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The problem of interest in this article are waves on a layer of finite depth governed by the Euler equations in the presence of gravity, surface tension, and vertical electric fields. Perturbation theory is used to identify canonical…

流体动力学 · 物理学 2015-01-13 Matthew Hunt , Emilian Parau , Jean-Marc Vanden-broeck , Demetrios Papageorgiou

We consider the evolution of contact lines for viscous fluids in a two-dimensional open-top vessel. The domain is bounded above by a free moving boundary and otherwise by the solid wall of a vessel. The dynamics of the fluid are governed by…

偏微分方程分析 · 数学 2016-09-23 Yunrui Zheng , Ian Tice

Consider a three-dimensional fluid in a rectangular tank, bounded by a flat bottom, vertical walls and a free surface evolving under the influence of gravity. We prove that one can estimate its energy by looking only at the motion of the…

偏微分方程分析 · 数学 2015-06-30 Thomas Alazard

The evolution of the interface separating a conduit of light, viscous fluid rising buoyantly through a heavy, more viscous, exterior fluid at small Reynolds numbers is governed by the interplay between nonlinearity and dispersion. Previous…

流体动力学 · 物理学 2015-06-16 Nicholas K. Lowman , Mark A. Hoefer

We are interested in the system of gravity water waves equations without surface tension. Our purpose is to study the optimal regularity thresholds for the initial conditions. In terms of Sobolev embeddings, the initial surfaces we consider…

偏微分方程分析 · 数学 2014-04-17 Thomas Alazard , Nicolas Burq , Claude Zuily

The issue of global well-posedness for the 3D inhomogenous incompressible Navier-Stokes equations was first addressed by Kazhikov in 1974. In this manuscript, we obtain its global well-posedness for the system with density-dependent…

偏微分方程分析 · 数学 2024-01-25 Dongjuan Niu , Lu Wang

In this work we discuss an approximate model for the propagation of deep irrotational water waves, specifically the model obtained by keeping only quadratic nonlinearities in the water waves system under the Zakharov/Craig-Sulem…

偏微分方程分析 · 数学 2025-01-06 Vincent Duchêne , Benjamin Melinand

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

We propose in this paper a new nonlinear mathematical model of an oscillating water column (OWC). The one-dimensional shallow water equations in the presence of this device is reformulated as a transmission problem related to the…

偏微分方程分析 · 数学 2023-09-04 Edoardo Bocchi , Jiao He , Gastón Vergara-Hermosilla

It is shown how to model weakly dissipative free-surface flows using the classical potential flow approach. The Helmholtz-Leray decomposition is applied to the linearized 3D Navier-Stokes equations. The governing equations are treated using…

大气与海洋物理 · 物理学 2020-02-20 Denys Dutykh , Frederic Dias

This paper is devoted to the proof of a well-posedness result for the gravity water waves equations, in arbitrary dimension and in fluid domains with general bottoms, when the initial velocity field is not necessarily Lipschitz. Moreover,…

偏微分方程分析 · 数学 2014-04-17 Thomas Alazard , Nicolas Burq , Claude Zuily

The present article is the third part of a series of papers devoted to the shallow water wave modelling. In this part, we investigate the derivation of some long wave models on a deformed sphere. We propose first a suitable for our purposes…

流体动力学 · 物理学 2020-02-20 Gayaz Khakimzyanov , Denys Dutykh , Zinaida Fedotova

A microscopic model able to describe simultaneously the dynamic viscosity and the self-diffusion coefficient of fluids is presented. This model is shown to emerge from the introduction of fractional calculus in a usual model of condensed…

统计力学 · 物理学 2021-11-24 F. Aitken , F. Volino

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…

偏微分方程分析 · 数学 2011-04-12 Felipe Linares , Didier Pilod , Jean-Claude Saut

The authors of the paper "The third-order perturbed Korteweg-de Vries equation for shallow water waves with a non-flat bottom" [1] claim that they have derived the full third order perturbed KdV equation for the case of uneven bottom. We…

流体动力学 · 物理学 2018-04-06 Piotr Rozmej , Anna Karczewska

We revisit the local well-posedness theory of nonlinear Schr\"odinger and wave equations in Sobolev spaces $H^s$ and $\dot{H}^s$, $0< s\leq 1$. The theory has been well established over the past few decades under Sobolev initial data…

偏微分方程分析 · 数学 2023-04-04 Youngwoo Koh , Yoonjung Lee , Ihyeok Seo

Using a simple and well-motivated modification of the stress-energy tensor for a viscous fluid proposed by Lichnerowicz, we prove that Einstein's equations coupled to a relativistic version of the Navier-Stokes equations are well-posed in a…

数学物理 · 物理学 2014-07-25 Marcelo M. Disconzi

This paper is a continuation of a previous work by two of the Authors on long time existence for Boussinesq systems modeling the propagation of long, weakly nonlinear water waves. We provide proofs on examples not considered previously in…

偏微分方程分析 · 数学 2015-12-01 Jean-Claude Saut , Chao Wang , Li Xu

Nonlinear wave-induced perturbations are discussed within the framework of the second-order theory. Due to the slow attenuation of the long perturbations with depth, they modulate motions beneath surface waves down to the bottom and can…

地球物理 · 物理学 2025-08-11 Alexey V. Slunyaev , Anna V. Kokorina

We propose and analyze a simple model for the evolution of an immersed, inextensible filament which incorporates linear viscoelastic effects of the surrounding fluid. The model is a closed-form system of equations along the curve only which…

偏微分方程分析 · 数学 2024-05-21 Laurel Ohm