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We investigate freely expanding sheets formed by ultrasoft gel beads, and liquid and viscoelastic drops, produced by the impact of the bead or drop on a silicon wafer covered with a thin layer of liquid nitrogen that suppresses viscous…

软凝聚态物质 · 物理学 2018-05-09 Sristhti Arora , Jean-Marc Fromental , Serge Mora , Ty Phou , Laurence Ramos , Christian Ligoure

The paper considers the dynamics of the spreading liquid droplets after impact on a solid surface. The dynamics of a drop falling on a solid surface is shown using numerical simulation based on the solution of 2D and 3D Navier-Stokes…

流体动力学 · 物理学 2022-07-15 Alexey Ivanovich Fedyushkin , Aleksey Nikolaevich Rozhkov

At impact of a liquid drop on a solid surface an air bubble can be entrapped. Here we show that two competing effects minimize the (relative) size of this entrained air bubble: For large drop impact velocity and large droplets the inertia…

One of the central problems in the study of rarefied gas dynamics is to find the steady-state solution of the Boltzmann equation quickly. When the Knudsen number is large, i.e. the system is highly rarefied, the conventional iteration…

计算物理 · 物理学 2020-02-19 Wei Su , Lianhua Zhu , Peng Wang , Yonghao Zhang , Lei Wu

The relaxation dynamics of glass forming liquids and their structure are influenced in the vicinity of confining walls. In view of the great potential of this effect for applications in those fields of science and industry, where liquids…

软凝聚态物质 · 物理学 2021-08-23 Fathollah Varnik , Thomas Franosch

We study by Molecular Dynamics simulation a dense one-component system of particles confined on a spherical substrate. We more specifically investigate the evolution of the structural and dynamical properties of the system when changing the…

软凝聚态物质 · 物理学 2018-05-23 Julien-Piera Vest , Gilles Tarjus , Pascal Viot

The present study explores the impact of a non-Newtonian fluid drop on a rigid surface using a mesh-free approach, Smoothed Particle Hydrodynam-ics. The complex interaction between viscous and elastic forces during drop impact may be…

流体动力学 · 物理学 2025-11-05 Tapan Jana , Amit Shaw , L. S. Ramachandra

We present a molecular dynamics study of the motion of cylindrical polymer droplets on striped surfaces. We first consider the equilibrium properties of droplets on different surfaces, we show that for small stripes the Cassie-Baxter…

软凝聚态物质 · 物理学 2019-08-28 Ozlem Ozturk , James Servantie

Constraints play an important role in dynamical systems. However, the subtle effect of constraints in quantum mechanics is not very well studied. In the present work we concentrate on the quantum dynamics of a point particle moving on a…

高能物理 - 理论 · 物理学 2021-02-03 Dripto Biswas , Subir Ghosh

We analyze a bubble forming system composed of particles with competing long range repulsive and short range attractive interactions driven over a quasi-one-dimensional periodic substrate. We find various pinned and sliding phases as a…

软凝聚态物质 · 物理学 2024-01-26 C. Reichhardt , C. J. O. Reichhardt

Dynamics of a liquid drop falling through a quiescent medium of another liquid is investigated in external uniform electric field. The electrohydrodynamics of a drop is governed by inherent deformability of the drop (defined by capillary…

流体动力学 · 物理学 2020-01-08 Nalinikanta Behera , Shubhadeep Mandal , Suman Chakraborty

Understanding the dynamics of drops on polymer-coated surfaces is crucial for optimizing applications such as self-cleaning materials or microfluidic devices. While the static and dynamic properties of deposited drops have been well…

软凝聚态物质 · 物理学 2024-03-15 Rodrique G. M. Badr , Lukas Hauer , Doris Vollmer , Friederike Schmid

We consider a liquid drop sitting on a rough solid surface at equilibrium, a volume constrained minimizer of the total interfacial energy. The large-scale shape of such a drop strongly depends on the micro-structure of the solid surface.…

偏微分方程分析 · 数学 2016-12-22 William M. Feldman , Inwon C. Kim

The wetting of soft elastic substrates exhibits many features that have no counterpart on rigid surfaces. Modelling the detailed elastocapillary interactions is challenging, and has so far been limited to single contact lines or single…

流体动力学 · 物理学 2023-08-11 Christopher Henkel , Jacco H. Snoeijer , Uwe Thiele

We address numerically the deformation and fragmentation dynamics of a single liquid drop subject to impulsive acceleration by a unidirectional gas stream. The density ratio between the liquid and gaseous phases is varied in the $10-2000$…

流体动力学 · 物理学 2019-11-26 Florence Marcotte , Stéphane Zaleski

A system of identical bosons with short-range (contact) interactions is studied. Their motion is confined to one dimension by a tight lateral trapping potential and, additionally, subject to a weak harmonic confinement in the longitudinal…

量子气体 · 物理学 2015-05-20 Igor E. Mazets

On hydrophobic surfaces, roughness may lead to a transition to a superhydrophobic state, where gas bubbles at the surface can have a strong impact on a detected slip. We present two-phase lattice Boltzmann simulations of a Couette flow over…

软凝聚态物质 · 物理学 2008-06-17 Jari Hyväluoma , Jens Harting

We study fully three-dimensional droplets that slide down an incline by employing a thin-film equation that accounts for capillarity, wettability, and a lateral driving force in small-gradient (or long-wave) approximation. In particular, we…

流体动力学 · 物理学 2016-12-15 Sebastian Engelnkemper , Markus Wilczek , Svetlana V. Gurevich , Uwe Thiele

In this work, a mathematical model based on interface energy is proposed within the framework of surface continuum mechanics to study the dynamics of encapsulated bubbles. The interface model naturally induces a residual stress field into…

流体动力学 · 物理学 2023-06-22 Nehal Dash , Ganesh Tamadapu

The work of Couder \textit{et al} (see also Bush \textit{et al}) inspired consideration of the impact of a submerged obstacle, providing a local change of depth, on the behavior of oil drops in the bouncing regime. In the linked videos, we…

流体动力学 · 物理学 2013-10-11 Remi Carmigniani , Simon Lapointe , Sean Symon , Beverley J. McKeon