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The issue of the inviscid limit for the incompressible Navier-Stokes equations when a no-slip condition is prescribed on the boundary is a famous open problem. A result by Tosio Kato says that convergence to the Euler equations holds true…

偏微分方程分析 · 数学 2015-05-30 Franck Sueur

The progressive onset of slip at the wall, which corresponds to a slip length increasing with the solicitation time before reaching a plateau, has been investigated for model viscoelastic polymer solutions, allowing one to vary the longest…

We present an investigation into the response of a viscous fluid flowing over a sloped bed across a spatially finite patch of basal lubrication. We present a simple analytical model that captures the fundamental structure of such…

流体动力学 · 物理学 2025-10-16 Joshua H. Rines , Ching-Yao Lai , Yongji Wang

The flow of viscous incompressible fluid over a periodically corrugated surface is investigated numerically by solving the Navier-Stokes equation with the local slip and no-slip boundary conditions. We consider the effective slip length…

流体动力学 · 物理学 2009-05-12 Anoosheh Niavarani , Nikolai V. Priezjev

We propose a non-local model for surface tension obtained in the form of an integral of a molecular-force-like function with support $3.5\varepsilon$ added to the Navier-Stokes momentum conservation equation. We demonstrate analytically and…

流体动力学 · 物理学 2020-07-01 Amanda A. Howard , Alexandre M. Tartakovsky

Using numerical simulations of the axisymmetric Navier-Stokes equations with swirl on a no-slip flat boundary, Hsu-Notsu-Yoneda [J. Fluid Mech. 2016] observed the creation of a high-vorticity region on the boundary near the axis of…

偏微分方程分析 · 数学 2019-03-27 Leandro Lichtenfelz , Tsuyoshi Yoneda

We experimentally investigate the dynamics of capillary-driven flows at the nanoscale, using an original platform that combines nanoscale pores and microfluidic features. Our results show a coherent picture across multiple experiments…

软凝聚态物质 · 物理学 2015-10-05 Olivier Vincent , Alexandre Szenicer , Abraham D. Stroock

We study a generalization of the Navier-Stokes-Fourier system for an incompressible fluid where the deviatoric part of the Cauchy stress tensor is related to the symmetric part of the velocity gradient via a maximal monotone 2-graph that is…

偏微分方程分析 · 数学 2017-05-02 Erika Maringová , Josef Žabenský

We propose a two-dimensional flow model of a viscous fluid between two close moving surfaces. We show, using a formal asymptotic expansion of the solution, that its asymptotic behavior, when the distance between the two surfaces tends to…

偏微分方程分析 · 数学 2023-08-01 José M. Rodríguez , Raquel Taboada-Vázquez

In this article we consider viscous flow in the exterior of an obstacle satisfying the standard no-slip boundary condition at the surface of the obstacle. We seek conditions under which solutions of the Navier-Stokes system in the exterior…

偏微分方程分析 · 数学 2009-02-17 D. Iftimie , M. C. Lopes Filho , H. J. Nussenzveig Lopes

Microfluidic systems are usually fabricated with soft materials that deform due to the fluid stresses. Recent experimental and theoretical studies on the steady flow in shallow deformable microchannels have shown that the flow rate is a…

流体动力学 · 物理学 2020-09-14 A. Martínez-Calvo , A. Sevilla , G. G. Peng , H. A. Stone

We investigate the evolution of rigid bodies in a viscous incompressible fluid. The flow is governed by the 2D Navier-Stokes equations, set in a bounded domain with Dirichlet boundary conditions. The boundaries of the solids and the domain…

偏微分方程分析 · 数学 2009-11-13 David Gérard-Varet , Matthieu Hillairet

A minimal kinetic model is used to study analytically and numerically flows at a micrometer scale. Using the lid-driven microcavity as an illustrative example, the interplay between kinetics and hydrodynamics is quantitatively visualized.…

统计力学 · 物理学 2007-05-23 S. Ansumali , C. E. Frouzakis , I. V. Karlin , I. G. Kevrekidis

In the theory of the Navier-Stokes equations, the viscous fluid in incompressible flow is modelled as a homogeneous and dense assemblage of constituent "fluid particles" with viscous stress proportional to rate of strain. The crucial…

流体动力学 · 物理学 2022-08-23 Wennan Zou

We performed non-equilibrium Molecular Dynamics simulations of water flow in nano-channels with the aim of discriminating {\it static} from {\it dynamic} contributions of the solid surface to the slip length of the molecular flow. We show…

软凝聚态物质 · 物理学 2014-02-20 Marcello Sega , Mauro Sbragaglia , Luca Biferale , Sauro Succi

Many vesicles have a spherical resting shape and exposure to fluid flows induces an exchange between sub-optical area and visible (systematic) deformation, while the total area is conserved. The dynamics which controls the exchange between…

软凝聚态物质 · 物理学 2020-06-19 Afsoun Rahnama Falavarjani , David Salac

In this paper we study the dynamics of an incompressible viscous fluid evolving in an open-top container in two dimensions. The fluid mechanics are dictated by the Navier-Stokes equations. The upper boundary of the fluid is free and evolves…

偏微分方程分析 · 数学 2020-10-30 Yan Guo , Ian Tice

Internal recirculation in a moving droplet plays an important role in several droplet-based microfluidic devices as it enhances mixing, chemical reaction and heat transfer. The occurrence of fluid slip at the wall, which becomes prominent…

流体动力学 · 物理学 2013-11-26 Joseph J Thalakkottor , Kamran Mohseni

In many macroscopic dynamic wetting problems, it is assumed that the macroscopic interface is quasistatic, and the dissipation appears only in the region close to the contact line. When approaching the moving contact line, a microscopic…

流体动力学 · 物理学 2017-09-12 Tak Shing Chan , Joshua D. McGraw , Thomas Salez , Ralf Seemann , Martin Brinkmann

We analyze the evolution of thin liquid droplets in the lubrication approximation with different slip conditions at the liquid-solid interface. Motivated by the classical no-slip paradox which states that the Navier-Stokes equations with a…

偏微分方程分析 · 数学 2025-12-22 Hans Knuepfer , Juan Velazquez