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Gravito-capillary waves at free-surfaces are ubiquitous in several natural and industrial processes involving quiescent liquid pools bounded by cylindrical walls. These waves emanate from the relaxation of initial interface distortions,…

流体动力学 · 物理学 2024-10-07 Lohit Kayal , Vatsal Sanjay , Nikhil Yewale , Anil Kumar , Ratul Dasgupta

In this experimental study, we investigate the interaction of gravity-capillary solitary waves generated by two surface pressure sources moving side by side at constant speed. The nonlinear response of a water surface to a single source…

流体动力学 · 物理学 2017-02-13 Naeem Masnadi , James H. Duncan

We experimentally study gravity-capillary wave turbulence on the interface between two immiscible fluids of close density with free upper surface. We locally measure the wave height at the interface between both fluids by means of a highly…

流体动力学 · 物理学 2017-03-08 Bruno Issenmann , Claude Laroche , Eric Falcon

Wave resistance is the drag force associated to the emission of waves by a moving disturbance at a fluid free surface. In the case of capillary-gravity waves it undergoes a transition from zero to a finite value as the speed of the…

流体动力学 · 物理学 2007-05-23 J. Browaeys , J. -C. Bacri , R. Perzynski , M. I. Shliomis

We prove local exact controllability in arbitrary short time of the two-dimensional incompressible Euler equation with free surface, in the case with surface tension. This proves that one can generate arbitrary small amplitude periodic…

偏微分方程分析 · 数学 2015-01-27 Thomas Alazard , Pietro Baldi , Daniel Han-Kwan

We prove a weighted a priori energy estimate for the two dimensional water-waves problem with contact points in the absence of gravity and surface tension. When the surface graph function and its time derivative have some decay near the…

偏微分方程分析 · 数学 2024-02-01 Mei Ming

In this paper we consider the equation for equivariant wave maps from $R^{3+1}$ to $S^3$ and we prove global in forward time existence of certain $C^\infty$-smooth solutions which have infinite critical Sobolev norm…

偏微分方程分析 · 数学 2016-08-01 Elisabetta Chiodaroli , Joachim Krieger

Using a nonlocal version of the center manifold theorem and a normal form reduction, we prove the existence of small-amplitude generalized solitary-wave solutions and modulated solitary-wave solutions to the steady gravity-capillary Whitham…

偏微分方程分析 · 数学 2021-09-27 Mathew A. Johnson , Tien Truong , Miles H. Wheeler

In this paper we construct periodic capillarity-gravity water waves with a piecewise constant vorticity distribution. They describe water waves traveling on superposed linearly sheared currents that have different vorticities. This is…

偏微分方程分析 · 数学 2013-02-25 Calin Iulian Martin , Bogdan--Vasile Matioc

Let $(M^3,g_0)$ be a complete noncompact Riemannian 3-manifold with nonnegative Ricci curvature and with injectivity radius bounded away from zero. Suppose that the scalar curvature $R(x)\to 0$ as $x\to \infty$. Then the Ricci flow with…

微分几何 · 数学 2008-07-07 Hong Huang

In this paper we consider two-dimensional, stratified, steady water waves propagating over an impermeable flat bed and with a free surface. The motion is assumed to be driven by capillarity (that is, surface tension) on the surface and a…

偏微分方程分析 · 数学 2009-11-10 Samuel Walsh

Consider the capillary water waves equations, set in the whole space with infinite depth, and consider small data (i.e. sufficiently close to zero velocity, and constant height of the water). We prove global existence and scattering. The…

偏微分方程分析 · 数学 2012-10-08 Pierre Germain , Nader Masmoudi , Jalal Shatah

This paper is concerned with two-dimensional, steady, periodic water waves propagating at the free surface of water in a flow of constant vorticity over an impermeable flat bed. The motion of these waves is assumed to be governed both by…

偏微分方程分析 · 数学 2014-04-23 Peter de Boeck

We provide the first construction of overhanging gravity water waves having the approximate form of a disk joined to a strip by a thin neck. The waves are solitary with constant vorticity, and exist when an appropriate dimensionless…

偏微分方程分析 · 数学 2024-09-04 Juan Dávila , Manuel del Pino , Monica Musso , Miles H. Wheeler

We consider two- and three-dimensional gravity and gravity-capillary solitary water waves in infinite depth. Assuming algebraic decay rates for the free surface and velocity potential, we show that the velocity potential necessarily behaves…

偏微分方程分析 · 数学 2021-07-30 Miles H. Wheeler

We study stationary capillary-gravity waves in a two-dimensional body of water that rests above a flat ocean bed and below vacuum. This system is described by the Euler equations with a free surface. Our main result states that there exist…

偏微分方程分析 · 数学 2020-06-18 Mats Ehrnström , Samuel Walsh , Chongchun Zeng

We consider the problem of global in time existence and uniqueness of solutions of the 3-D infinite depth full water wave problem. We show that the nature of the nonlinearity of the water wave equation is essentially of cubic and higher…

偏微分方程分析 · 数学 2015-05-14 Sijue Wu

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

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 revisit the classical but as yet unresolved problem of predicting the breaking onset of 2D and 3D irrotational gravity water waves. This study focuses on domains with flat bottom topography and conditions ranging from deep to…

大气与海洋物理 · 物理学 2017-04-04 X. Barthelemy , M. L. Banner , W. L. Peirson , F. Fedele , M. Allis , F. Dias