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The classical irrotational capillary-gravity water wave problem described by the Euler equations with a nonlinear free surface boundary condition over a flat bed is considered. A modified flow force has been defined and a new formulation of…

Analysis of PDEs · Mathematics 2020-10-20 Biswajit Basu , Calin Iulian Martin

In this paper we consider three-dimensional steady water waves with vorticity, under the action of gravity and surface tension; in particular we consider so-called Beltrami flows, for which the velocity field and the vorticity are…

Analysis of PDEs · Mathematics 2024-06-05 Mark D. Groves , Dag Nilsson , Stefano Pasquali , Erik Wahlén

In this paper we prove global regularity for the full water waves system in 3 dimensions for small data, under the influence of both gravity and surface tension. This problem presents essential difficulties which were absent in all of the…

Analysis of PDEs · Mathematics 2018-05-25 Y. Deng , A. D. Ionescu , B. Pausader , F. Pusateri

We formulate the two-dimensional gravity-capillary water wave equations in a spatially quasi-periodic setting and present a numerical study of solutions of the initial value problem. We propose a Fourier pseudo-spectral discretization of…

Fluid Dynamics · Physics 2021-05-05 Jon Wilkening , Xinyu Zhao

The two-dimensional free-boundary problem describing steady gravity waves with vorticity on water of finite depth is considered. Under the assumption that the vorticity is a negative constant whose absolute value is sufficiently large, we…

Mathematical Physics · Physics 2020-10-28 Vladimir Kozlov , Nikolai G. Kuznetsov , Evgeniy Lokharu

This article represents the first installment of a series of papers concerned with low regularity solutions for the water wave equations in two space dimensions. Our focus here is on sharp cubic energy estimates. Precisely, we introduce and…

Analysis of PDEs · Mathematics 2023-01-20 Albert Ai , Mihaela Ifrim , Daniel Tataru

We consider the two-dimensional water-wave problem with a general non-zero vorticity field in a fluid volume with a flat bed and a free surface. The nonlinear equations of motion for the chosen surface and volume variables are expressed…

Analysis of PDEs · Mathematics 2024-09-04 Delia Ionescu-Kruse , Rossen Ivanov

We construct three-dimensional families of small-amplitude gravity-driven rotational steady water waves on finite depth. The solutions contain counter-currents and multiple crests in each minimal period. Each such wave generically is a…

Analysis of PDEs · Mathematics 2016-09-12 Mats Ehrnström , Erik Wahlén

We show that the governing equations for two-dimensional gravity water waves with constant non-zero vorticity have a nearly-Hamiltonian structure, which becomes Hamiltonian for steady waves.

Mathematical Physics · Physics 2009-07-14 Adrian Constantin , Rossen I. Ivanov , Emil M. Prodanov

We study steady axisymmetric water waves with general vorticity and swirl, subject to the influence of surface tension. Explicit solutions to such a water wave problem are static configurations where the surface is an unduloid, that is, a…

Analysis of PDEs · Mathematics 2024-08-27 Anna-Mariya Otsetova , Erik Wahlén , Jörg Weber

We prove the existence and the linear stability of Cantor families of small amplitude time quasi-periodic standing water wave solutions - namely periodic and even in the space variable x - of a bi-dimensional ocean with finite depth under…

Analysis of PDEs · Mathematics 2018-12-21 Pietro Baldi , Massimiliano Berti , Emanuele Haus , Riccardo Montalto

We study the transverse dynamics of two-dimensional traveling periodic waves for the gravity--capillary water-wave problem. The governing equations are the Euler equations for the irrotational flow of an inviscid fluid layer with free…

Analysis of PDEs · Mathematics 2022-03-29 Mariana Haragus , Tien Truong , Erik Wahlén

In this paper, we first construct two-dimensional periodic interface waves with point vortex and capillary effect and then obtain the global structure of the set of solutions. This is done using the local and global bifurcation argument.…

Analysis of PDEs · Mathematics 2024-04-08 Dai Guowei , Zhang Yong

We consider the full irrotational water waves system with surface tension and no gravity in dimension two (the capillary waves system), and prove global regularity and modified scattering for suitably small and localized perturbations of a…

Analysis of PDEs · Mathematics 2017-04-06 Alexandru D. Ionescu , Fabio Pusateri

We provide analytic solutions of the nonlinear differential equation system describing the particle paths below small-amplitude periodic gravity waves travelling on a constant vorticity current. We show that these paths are not closed…

Mathematical Physics · Physics 2011-08-25 Delia Ionescu-Kruse

We construct small-amplitude periodic water waves with multiple critical layers. In addition to waves with arbitrarily many critical layers and a single crest in each period, two-dimensional sets of waves with several crests and troughs in…

Analysis of PDEs · Mathematics 2011-04-04 Mats Ehrnström , Joachim Escher , Erik Wahlén

We prove real analyticity of all the streamlines, including the free surface, of a steady stratified flow of water over a flat bed in the absence of stagnation points, with a H\"older continuous Bernoulli function and a H\"older…

Analysis of PDEs · Mathematics 2012-02-16 Ling-Jun Wang

We consider the stability of periodic gravity-capillary waves of finite amplitude for small values of the surface tension. Linear stability with respect to both superharmonic and subharmonic perturbations is calculated for each solution,…

Fluid Dynamics · Physics 2026-04-28 Josh Shelton , Adam Rook

We prove local well-posedness for the gravity water waves equations without surface tension, with initial velocity field in $H^s$, $s > \frac{d}{2} + 1 - \mu$, where $\mu = \frac{1}{10}$ in the case $d = 1$ and $\mu = \frac{1}{5}$ in the…

Analysis of PDEs · Mathematics 2019-10-14 Albert Ai

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…

Fluid Dynamics · Physics 2017-02-13 Naeem Masnadi , James H. Duncan
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