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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

A scaling argument is presented that leads to a shallow water theory of non-axisymmetric disturbances in annular sections of thin Keplerian disks. To develop a theoretical construction that will aid in physically understanding the…

天体物理学 · 物理学 2009-11-13 O. M. Umurhan

Molecular dynamics simulations are used to study the behavior of closely-fitting spherical and ellipsoidal particles moving through a fluid-filled cylinder at nanometer scales. The particle, the cylinder wall and the fluid solvent are all…

软凝聚态物质 · 物理学 2007-05-23 German Drazer , Boris Khusid , Joel Koplik , Andreas Acrivos

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 present a large-amplitude existence theory for two-dimensional solitary waves propagating through a two layer body of water. The domain of the fluid is bounded below by an impermeable flat ocean floor and above by a free boundary at…

偏微分方程分析 · 数学 2020-12-02 Daniel Sinambela

This work thoroughly examines several analytical tools, each possessing a different level of mathematical intricacy, for the purpose of characterizing the orientation distribution function of elongated objects under flow. Our investigation…

This paper is concerned with two-dimensional, steady, periodic water waves propagating at the free surface of water either in a flow of finite depth and constant vorticity over an impermeable flat bed or in an irrotational flow of great…

偏微分方程分析 · 数学 2014-04-25 Peter de Boeck

In a set of experiments, Couder et. al. demonstrate that an oscillating fluid bed may propagate a bouncing droplet through the guidance of the surface waves. We present a dynamical systems model, in the form of an iterative map, for a…

混沌动力学 · 物理学 2015-06-04 David Shirokoff

The dynamics of fluid vesicles is studied under flow in microchannels, in which the width varies periodically along the channel. Three types of flow instabilities of prolate vesicles are found. For small quasi-spherical vesicles -- compared…

软凝聚态物质 · 物理学 2010-02-15 Hiroshi Noguchi , Gerhard Gompper , Lothar Schmid , Achim Wixforth , Thomas Franke

We investigate the existence of solitary gravity waves traversing a two-dimensional body of water that is bounded below by a flat impenetrable ocean bed and above by a free surface of constant pressure. Our main interest is constructing…

偏微分方程分析 · 数学 2021-03-02 Adelaide Akers , Samuel Walsh

The appearence of a new type of fast nonlinear traveling wave states in binary fluid convection with increasing Soret effect is elucidated and the parameter range of their bistability with the common slower ones is evaluated numerically.…

patt-sol · 物理学 2009-10-30 St. Hollinger , P. Buechel , M. Luecke

Process of the nonlinear deformation of the shallow water wave in a basin of constant depth is studied. The characteristics of the first breaking are analyzed in details. The Fourier spectrum and steepness of the nonlinear wave is…

可精确求解与可积系统 · 物理学 2007-05-23 Narcisse Zahibo , Irina Didenkulova , Andrey Kurkin , Efim Pelinovsky

We investigate and model the initiation of motion of a single particle on a structured substrate within an oscillatory boundary layer flow, following a mechanistic approach. By deterministically relating forces and torques acting on the…

We present laboratory experiments of surface wave turbulence excited by paddles in the deep water regime. The free surface is seeded with buoyant particles that are advected and dispersed by the flow. Positions and velocities of the…

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…

数学物理 · 物理学 2020-10-28 Vladimir Kozlov , Nikolai G. Kuznetsov , Evgeniy Lokharu

The problem for two-dimensional steady gravity driven water waves with vorticity is investigated. Using a multidimensional bifurcation argument, we prove the existence of small-amplitude periodic steady waves with an arbitrary number of…

偏微分方程分析 · 数学 2019-03-18 Vladimir Kozlov , Evgeniy Lokharu

The standing surface waves in a rectangular vertically oscillating vessel filled with water (Faraday waves) in the presence of a floating elastic sheet are studied experimentally and theoretically. The threshold amplitude of the instability…

流体动力学 · 物理学 2023-07-11 Vahideh Sardari , Leila Bahmani , Maniya Maleki

A wave equation for a time-dependent perturbation about the steady shallow-water solution emulates the metric an acoustic white hole, even upon the incorporation of nonlinearity in the lowest order. A standing wave in the sub-critical…

其他凝聚态物理 · 物理学 2009-11-10 Arnab K. Ray , J. K. Bhattacharjee

This article is devoted to the study of local well-posedness for deep water waves with constant vorticity in two space dimensions on the real line. The water waves can be paralinearized and written as a quasilinear dispersive system of…

偏微分方程分析 · 数学 2024-10-16 Lizhe Wan

In this paper we construct small amplitude periodic internal waves traveling at the boundary region between two rotational and homogeneous fluids with different densities. Within a period, the waves we obtain have the property that the…

偏微分方程分析 · 数学 2012-02-15 Anca-Voichita Matioc