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相关论文: Capillary Rise in Nanopores: Molecular Dynamics Ev…

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We study the short-time dynamics of a liquid ligament, held between two solid cylinders, when one is impulsively accelerated along its axis. A set of one-dimensional equations in the slender-slope approximation is used to describe the…

流体动力学 · 物理学 2015-06-11 Laurent Duchemin , Stéphane Le Dizès , Lionel Vincent , Emmanuel Villermaux

The dynamics of individual liquid plugs pushed at constant pressure head inside prewetted cylindrical capillary tubes is investigated experimentally and theoretically. It is shown that, depending on the thickness of the prewetting film and…

流体动力学 · 物理学 2016-09-13 J. C. Magniez , M. Baudoin , C. Liu , F. Zoueshtiagh

We examine the budding of a nanoscale particle through a lipid bilayer using molecular dynamics simulations, free energy calculations, and an elastic theory, with the aim of determining the extent to which equilibrium elasticity theory can…

亚细胞过程 · 定量生物学 2012-02-22 Teresa Ruiz-Herrero , Enrique Velasco , Michael F. Hagan

Capillary thinning of polymeric fluids is central to biological and industrial processes, yet the mechanisms governing thinning dynamics remain unresolved, especially for semi-flexible polymers. Using ideal solutions of semi-flexible DNA,…

软凝聚态物质 · 物理学 2025-03-19 Vincenzo Calabrese , Silvia Nardone , Amy Q. Shen , Simon J. Haward

We review here the physics of capillary condensation of liquids in confined media, with a special regard to the application in nanotechnologies. The thermodynamics of capillary condensation and thin film adsorption are first exposed along…

流体动力学 · 物理学 2009-10-27 Elisabeth Charlaix , Matteo Ciccotti

Capillary suspensions are three-phase mixtures containing a solid particulate phase, a continuous liquid phase, and a second immiscible liquid forming capillary bridges between particles. Capillary suspensions are encountered in a wide…

流体动力学 · 物理学 2023-12-19 Sagar Chaudhary , Sachin S. Velankar , Charles M. Schroeder

When two bubbles submerged in a liquid are brought closely together, the intermediate liquid film separating the bubbles begins to drain. Once the film ruptures, the bubbles coalesce and form a neck that expands with time. The dynamics of…

流体动力学 · 物理学 2023-05-03 Alexandros T. Oratis , Vincent Bertin , Jacco H. Snoeijer

In this work we consider theoretically the problem of a Newtonian droplet moving in an otherwise quiescent infinite viscoelastic fluid under the influence of an externally applied temperature gradient. The outer fluid is modelled by the…

The dynamics of saturated vapor between two intersecting walls is examined. It is shown that, if the angle $\phi$ between the walls is sufficiently small, the vapor becomes unstable, and spontaneous condensation occurs in the corner,…

软凝聚态物质 · 物理学 2022-06-15 E. S. Benilov

Four different numerical approaches are compared for the rise of liquid between two parallel plates. These are an Arbitrary Lagrangian-Eulerian method (OpenFOAM solver interTrackFoam), a geometric volume of fluid code (FS3D), an algebraic…

Capillary ripples on thin viscous films are important features of coating and lubrication flows. Here we present experiments based on Digital Holographic Microscopy, measuring the morphology of capillary ripples ahead of a viscous drop…

流体动力学 · 物理学 2020-10-07 Maziyar Jalaal , Carola Seyfert , Jacco Snoeijer

We study here experimentally, numerically and using a lubrication approach; the shape, velocity and lubrication film thickness distribution of a droplet rising in a vertical Hele-Shaw cell. The droplet is surrounded by a stationary…

流体动力学 · 物理学 2019-09-04 Isha Shukla , Nicolas Kofman , Gioele Balestra , Lailai Zhu , François Gallaire

Fully atomistic molecular dynamics simulations were carried out to investigate how a liquid-like water droplet behaves when into contact with a nanopore formed by carbon nanotube arrays. We have considered different tube arrays, varying the…

介观与纳米尺度物理 · 物理学 2017-02-22 Ygor M. Jaques , Douglas S. Galvao

The well-known thermal capillary wave theory, which describes the capillary spectrum of the free surface of a liquid film, does not reveal the transient dynamics of surface waves, e.g., the process through which a smooth surface becomes…

流体动力学 · 物理学 2021-09-17 Yixin Zhang , James E. Sprittles , Duncan A. Lockerby

Hydrodynamic slip of a liquid at a solid surface represents a fundamental phenomenon in fluid dynamics that governs liquid transport at small scales. For polymeric liquids, de Gennes predicted that the Navier boundary condition together…

This paper discusses the nanopores emerging and developing in a liquid dielectric under the action of the ponderomotive electrostrictive forces in a nonuniform electric field. It is shown that the gradient of the electric field in the…

流体动力学 · 物理学 2015-11-05 M. Pekker , M. N. Shneider

A droplet placed on a hydrophilic conical fiber tends to move toward the end of larger radii due to capillary action. Experimental investigations are performed to explore the dynamics of droplets with varying viscosities and volumes on…

流体动力学 · 物理学 2024-09-04 Yixiao Mao , Chengxi Zhao , Kai Mu , Kai Li , Ting Si

We discuss the creeping motion of plugs of negligible viscosity in rough capillary tubes filled with carrier fluids. This extends Bretherton's research work on the infinite-length bubble motion in a cylindrical or smooth tube for small…

软凝聚态物质 · 物理学 2010-03-16 Quan Zhang , Konstantin S. Turitsyn , Thomas A. Witten

The aim of this study is to derive accurate models for quantities characterizing the dynamics of droplets of non-vanishing viscosity in capillaries. In particular, we propose models for the uniform-film thickness separating the droplet from…

流体动力学 · 物理学 2018-07-03 Gioele Balestra , Lailai Zhu , François Gallaire

Small water droplets or particles located at an oil meniscus typically climb the meniscus due to unbalanced capillary forces. Here, we introduce a size-dependent reversal of this meniscus-climbing behavior, where upon cooling of the…

流体动力学 · 物理学 2022-09-19 Jianxing Sun , Patricia B. Weisensee