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相关论文: On capillary-gravity waves generated by a slow mov…

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Droplets, particularly water, are abundant in nature and artificial systems. Thermal fluctuations imply that droplet interfaces behave like a stormy sea at the sub-nanometer scale.Thermal capillary-waves have been widely studied since 1908…

软凝聚态物质 · 物理学 2015-12-25 Shai Maayani , Leopoldo L. Martin , Samuel Kaminski , Tal Carmon

Steady two-dimensional surface capillary-gravity waves in irrotational motion are considered on constant depth. By exploiting the holomorphic properties in the physical plane and introducing some transformations of the boundary conditions…

经典物理 · 物理学 2018-02-07 Didier Clamond

In this paper, we study the traveling wave solutions to the density-suppressed motility model describing the ``self-trapping'' mechanism that induces spatio-temporal pattern formations observed in the experiment. We establish the existence…

偏微分方程分析 · 数学 2020-06-24 Jing Li , Zhi-An Wang

A nonlinear Schr\"odinger equation for the envelope of two-dimensional gravity-capillary waves propagating at the free surface of a vertically sheared current of constant vorticity is derived. In this paper we extend to gravity-capillary…

流体动力学 · 物理学 2018-10-17 H. -C. Hsu , C. Kharif , M. Abid , Y. -Y. Chen

Spiral waves in active media react to small perturbations as particle-like objects. Here we apply the asymptotic theory to the interaction of spiral waves with a localized inhomogeneity, which leads to a novel prediction: drift of the…

斑图形成与孤子 · 物理学 2010-01-25 V. N. Biktashev , D. Barkley , I. V. Biktasheva

Using molecular dynamics simulations, we study the motion of a closely fitting nanometer-size solid sphere in a fluid-filled cylindrical nanochannel at low Reynolds numbers and for a wide range of fluid-solid interactions corresponding to…

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

An experimental study of a granular surface submitted to a circular fluid motion is presented. The appearance of an instability along the sand-water interface is observed beyond a critical radius $r_c$. This creates ripples with a spiral…

软凝聚态物质 · 物理学 2009-11-07 H. Caps , N. Vandewalle

In this paper, we consider 2D incompressible Euler equations in an unbounded domain with a free surface and a fixed bottom at finite depth. The fluid motion is under the influence of gravity and surface tension. We construct initial data…

偏微分方程分析 · 数学 2026-04-22 Yuanpeng Tu

We consider pressure-driven flows of electrolyte solutions in small channels or capillaries in which tracer particles are used to probe velocity profiles. Under the assumption that the double layer is thin compared to the channel…

流体动力学 · 物理学 2008-10-02 Eric Lauga

This paper establishes the conditional orbital stability of fully localized solitary waves for the three-dimensional capillary-gravity water wave problem in finite depth under strong surface tension. The waves, constructed via a…

偏微分方程分析 · 数学 2025-11-11 Changfeng Gui , Shanfa Lai , Yong Liu , Juncheng Wei , Wen Yang

We consider the gravity-capillary water waves equations for a bi-dimensional fluid with a periodic one-dimensional free surface. We prove a rigorous reduction of this system to Birkhoff normal form up to cubic degree. Due to the possible…

偏微分方程分析 · 数学 2019-05-15 Massimiliano Berti , Roberto Feola , Luca Franzoi

Stability criterion for the surface gravity capillary waves in a flowing two-layered fluid system with viscous dissipation is investigated. It is seen that the dissipative instability of negative energy waves is absent,- contrary to what…

流体动力学 · 物理学 2007-05-23 S. Chatterjee , P. S. Joarder

The motion of a thin layer of granular material on a plate undergoing sinusoidal vibrations is considered. We develop equations of motion for the local thickness and the horizontal velocity of the layer. The driving comes from the violent…

patt-sol · 物理学 2009-10-31 Jens Eggers , Hermann Riecke

We present an existence and stability theory for gravity-capillary solitary waves on the top surface of and interface between two perfect fluids of different densities, the lower one being of infinite depth. Exploiting a classical…

偏微分方程分析 · 数学 2020-07-28 Dominic Breit , Erik Wahlén

We prove the existence of three-dimensional steady gravity-capillary waves with vorticity on water of finite depth. The waves are periodic with respect to a given two-dimensional lattice and the relative velocity field is a Beltrami field,…

偏微分方程分析 · 数学 2020-07-28 Evgeniy Lokharu , Douglas Svensson Seth , Erik Wahlén

Pendant drops spontaneously appear on the underside of wet surfaces through the Rayleigh-Taylor instability. These droplets have no contact line, they are connected to a thin liquid film with which they exchange liquid and are thus mobile:…

流体动力学 · 物理学 2024-08-09 Etienne Jambon-Puillet

The statistical properties of a large number of weakly nonlinear waves can be described in the framework of the Weak Turbulence Theory. The theory is based on the hypothesis of an asymptotically large system. In experiments, the systems…

流体动力学 · 物理学 2018-09-07 Roumaissa Hassaini , Nicolas Mordant

We study an imbibition problem for porous media. When a wetted layer is above a dry medium, gravity leads to the propagation of the water downwards into the medium. In experiments, the occurrence of fingers was observed, a phenomenon that…

偏微分方程分析 · 数学 2020-11-24 K. Mitra , A. Rätz , B. Schweizer

Making liquid droplets move spontaneously on solid surfaces is a key challenge in lab-on-chip and heat exchanger technologies. The best-known mechanism, a wettability gradient, does not generally move droplets rapidly enough and cannot…

软凝聚态物质 · 物理学 2015-03-13 Cunjing Lv , Chao Chen , Yin-Chuan Chuang , Fan-Gang Tseng , Yajun Yin , Francois Grey , Quanshui Zheng

This paper studies periodic traveling gravity waves at the free surface of water in a flow of constant vorticity over a flat bed. Using conformal mappings the free-boundary problem is transformed into a quasilinear pseudodifferential…

偏微分方程分析 · 数学 2015-05-14 Adrian Constantin , Eugen Varvaruca