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A reduced dynamical model is derived which describes the interaction of weak inertia-gravity waves with nonlinear vortical motion in the context of rotating shallow-water flow. The formal scaling assumptions are (i) that there is a…

chao-dyn · 物理学 2009-10-28 Caroline Nore , Theodore G. Shepherd

In this short note, we derive a system of two nonlocal equations for the water-wave problem following the work of [AFM06]. Specifically, we consider a fluid with a one-dimensional free surface for an irrotational fluid both with, and…

流体动力学 · 物理学 2020-08-04 KL Oliveras

We exhibit a set of six explicit higher nonlocal charges of free-surface deep-water gravity waves conserved in lowest nontrivial orders of perturbation in the amplitude of the surface displacement.

流体动力学 · 物理学 2021-03-17 André Neveu

The two dimensional gravity water wave problem concerns the motion of an incompressible fluid occupying half the 2D space and flowing under its own gravity. In this paper we study long-term regularity of solutions evolving from small but…

偏微分方程分析 · 数学 2022-06-22 Fan Zheng

In this paper we prove the local well-posedness (LWP) for the 3D compressible Euler equations describing the motion of a liquid in an unbounded initial domain with moving boundary. The liquid is under the influence of gravity but without…

偏微分方程分析 · 数学 2022-06-15 Chenyun Luo , Junyan Zhang

The study of gravity-capillary water waves in two space dimensions has been an important question in mathematical fluid dynamics. By implementing the cubic modified energy method of Ifrim-Tataru in the context of gravity-capillary waves, we…

偏微分方程分析 · 数学 2024-10-08 Lizhe Wan

We address in this paper the study of a geometric evolution, corresponding to a curvature which is non-local and singular at the origin. The curvature represents the first variation of the energy recently proposed as a variant of the…

偏微分方程分析 · 数学 2012-01-26 Antonin Chambolle , Massimiliano Morini , Marcello Ponsiglione

(abridged version) The separate universe conjecture states that in General Relativity a density perturbation behaves locally (i.e. on scales much smaller than the wavelength of the mode) as a separate universe with different background…

宇宙学与河外天体物理 · 物理学 2015-11-04 Liang Dai , Enrico Pajer , Fabian Schmidt

We derive an effective gravitational potential, induced by the quantum wavefunction of a physical vacuum of a self-gravitating configuration, while the vacuum itself is viewed as the superfluid described by the logarithmic quantum wave…

广义相对论与量子宇宙学 · 物理学 2020-12-01 Konstantin G. Zloshchastiev

The spherical capillary water waves equation describes the motion of an almost spherical water droplet under zero gravity governed by water-air interface tension. Using para-differential calculus on compact Lie groups and homogeneous spaces…

偏微分方程分析 · 数学 2023-10-12 Chengyang Shao

We construct small-amplitude steady periodic gravity water waves arising as the free surface of water flows that contain stagnation points and possess a discontinuous distribution of vorticity in the sense that the flows consist of two…

偏微分方程分析 · 数学 2015-03-05 Calin Iulian Martin , Bogdan-Vasile Matioc

We elaborate on the principle that for gapped quantum spin systems with local interaction "local perturbations [in the Hamiltonian] perturb locally [the ground state]". This principle was established in [Bachmann et al. 2012], relying on…

数学物理 · 物理学 2015-06-30 Wojciech De Roeck , Marius Schütz

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

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…

偏微分方程分析 · 数学 2020-10-20 Biswajit Basu , Calin Iulian Martin

We derive a simple algebraic form of the nonlinear wavenumber correction of surface gravity waves in deep water, based on temporal measurements of the water surface and the spatial Zakharov equation. This allows us to formulate an…

流体动力学 · 物理学 2022-05-02 Mariano Galvagno , Debbie Eeltink , Raphael Stuhlmeier

We argue that the physics of interacting Kelvin Waves (KWs) is highly non-trivial and cannot be understood on the basis of pure dimensional reasoning. A consistent theory of KW turbulence in superfluids should be based upon explicit…

混沌动力学 · 物理学 2010-04-29 Jason Laurie , Victor S. L'vov , Sergey Nazarenko , Oleksii Rudenko

We construct small-amplitude solitary traveling gravity-capillary water waves with a finite number of point vortices along a vertical line, on finite depth. This is done using a local bifurcation argument. The properties of the resulting…

偏微分方程分析 · 数学 2016-12-12 Kristoffer Varholm

Water waves are well-known to be dispersive at the linearization level. Considering the fully nonlinear systems, we prove for reasonably smooth solutions the optimal Strichartz estimates for pure gravity waves and the semi-classical…

偏微分方程分析 · 数学 2016-09-27 Quang-Huy Nguyen

We introduce a new model equation for Stokes gravity waves based on conformal transformations of Euler's equations. The local version of the model equation is relevant for dynamics of shallow water waves. It allows us to characterize the…

偏微分方程分析 · 数学 2024-12-03 Spencer Locke , Dmitry E. Pelinovsky

The classical equations of irrotational water waves have recently been reformulated as a system of two equations, one of which is an explicit non-local equation for the wave height and for the velocity potential evaluated on the free…

偏微分方程分析 · 数学 2011-08-01 Anthony C. L Ashton , A. S. Fokas