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We develop a numerical method based on canonical conformal variables to study two eigenvalue problems for operators fundamental to finding a Stokes wave and its stability in a 2D ideal fluid with a free surface in infinite depth. We…

数值分析 · 数学 2023-07-03 Sergey A. Dyachenko , Anastassiya Semenova

We address Euler's equations for irrotational gravity waves in an infinitely deep fluid rewritten in conformal variables. Stokes waves are traveling waves with the smooth periodic profile. In agreement with the previous numerical results,…

偏微分方程分析 · 数学 2025-03-21 Sergey Dyachenko , Dmitry E. Pelinovsky

We consider the two-dimensional problem for steady water waves with vorticity on water of finite depth. While neglecting the effects of surface tension we construct connected families of large amplitude periodic waves approaching the…

偏微分方程分析 · 数学 2020-12-23 Vladimir Kozlov , Evgeniy Lokharu

We consider steady surface waves in an infinitely deep two--dimensional ideal fluid with potential flow, focusing on high-amplitude waves near the steepest wave with a 120 degree corner at the crest. The stability of these solutions with…

流体动力学 · 物理学 2024-04-25 Bernard Deconinck , Sergey A. Dyachenko , Anastassiya Semenova

In this paper, we establish the existence of Stokes waves with piecewise smooth vorticity in a two-dimensional, infinitely deep fluid domain. These waves represent traveling water waves propagating over sheared currents in a semi-infinite…

偏微分方程分析 · 数学 2025-11-07 Changfeng Gui , Jun Wang , Wen Yang , Yong Zhang

We study the limiting behavior of large-amplitude standing waves on deep water using high-resolution numerical simulations in double and quadruple precision. While periodic traveling waves approach Stokes's sharply crested extreme wave in…

流体动力学 · 物理学 2011-10-27 Jon Wilkening

We consider Stokes water waves on the vorticity flow in a two-dimensional channel of finite depth. In the paper "V.Kozlov, On first subharmonic bifurcations in a branch of Stokes waves, JDE, 2024," it was proved existence of subharmonic…

偏微分方程分析 · 数学 2024-01-23 Vladimir Kozlov

We consider traveling waves on a surface of an ideal fluid of finite depth. The equation describing Stokes waves in conformal variables formulation are referred to as the Babenko equation. We use a Newton-Conjugate-Gradient method to…

流体动力学 · 物理学 2024-12-02 Anastassiya Semenova , Eleanor Byrnes

Steady surface waves in a two-dimensional channel are considered. We study bifurcations, which occur on a branch of Stokes water waves starting from a uniform stream solution. Two types of bifurcations are considered: bifurcations in the…

偏微分方程分析 · 数学 2023-04-25 Vladimir Kozlov

We investigate the Benjamin-Feir (or modulational) instability of Stokes waves, i.e., small-amplitude, one-dimensional periodic gravity waves of permanent form and constant velocity, in water of finite and infinite depth. We develop a…

流体动力学 · 物理学 2023-02-22 Ryan Creedon , Bernard Deconinck

We propose a Stokes expansion ansatz for finite-depth standing water waves in two dimensions and devise a recursive algorithm to compute the expansion coefficients. We implement the algorithm on a supercomputer using arbitrary-precision…

流体动力学 · 物理学 2025-07-11 Ahmad Abassi , Jon Wilkening

We consider the gravity-capillary water waves equations of a 2D fluid with constant vorticity. By employing variational methods we prove the bifurcation of periodic traveling water waves -- which are steady in a moving frame -- for {\it…

偏微分方程分析 · 数学 2025-09-12 T. Barbieri , M. Berti , A. Maspero , M. Mazzucchelli

Periodic traveling waves are numerically computed in a constant vorticity flow subject to the force of gravity. The Stokes wave problem is formulated via a conformal mapping as a nonlinear pseudo-differential equation, involving a periodic…

流体动力学 · 物理学 2018-02-22 Sergey A. Dyachenko , Vera Mikyoung Hur

The Stokes wave problem in a constant vorticity flow is formulated, by virtue of conformal mapping techniques, as a nonlinear pseudodifferential equation, involving the periodic Hilbert transform, which becomes the Babenko equation in the…

流体动力学 · 物理学 2019-10-23 Sergey A. Dyachenko , Vera Mikyoung Hur

We study two-crested traveling Stokes waves on the surface of an ideal fluid with infinite depth. Following Chen and Saffman (1980), we refer to these waves as class $\mathrm{II}$ Stokes waves. The class $\mathrm{II}$ waves are found from…

斑图形成与孤子 · 物理学 2024-11-26 Anastassiya Semenova

The two-dimensional free-boundary problem of steady periodic waves with vorticity is considered for water of finite depth. We investigate how flows with small-amplitude Stokes waves on the free surface bifurcate from a horizontal parallel…

数学物理 · 物理学 2014-06-06 Vladimir Kozlov , Nikolay Kuznetsov

We consider several different bidirectional Whitham equations that have recently appeared in the literature. Each of these models combine the full two-way dispersion relation from the incompressible Euler equations with a canonical shallow…

偏微分方程分析 · 数学 2018-04-11 Kyle M. Claassen , Mathew A. Johnson

The existence of periodic waves propagating downstream on the surface of a two-dimensional infinitely deep water under gravity is established for a general class of vorticities. When reformulated as an elliptic boundary value problem in a…

偏微分方程分析 · 数学 2009-12-02 Vera Mikyoung Hur

A stability of nearly limiting Stokes waves to superharmonic perturbations is considered numerically. The new, previously inaccessible branches of superharmonic instability were investigated. Our numerical simulations suggest that…

This paper fully answers a long standing open question concerning the stability/instability of pure gravity periodic traveling water waves -- called Stokes waves -- at the critical Whitham-Benjamin depth $ \mathtt{h}_{\scriptscriptstyle WB}…

偏微分方程分析 · 数学 2023-06-26 Massimiliano Berti , Alberto Maspero , Paolo Ventura
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