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相关论文: Numerical analysis of dynamic electro-osmotic flow…

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We study the statistical correlation functions for the three-dimensional hydrodynamic turbulence onset when the dynamics is dominated by the pancake-like high-vorticity structures. With extensive numerical simulations, we systematically…

流体动力学 · 物理学 2022-12-09 D. S. Agafontsev , E. A. Kuznetsov , A. A. Mailybaev

We study a simplified system of the original Ericksen--Leslie equations for the flow of nematic liquid crystals. This is a coupled non-parabolic dissipative dynamic system. We show the convergence of global classical solutions to single…

偏微分方程分析 · 数学 2010-11-04 Hao Wu

We derive the Hydrodynamics for a system of N active, spherical, underdamped particles, interacting through conservative forces. At the microscopic level, we represent the evolution of the particles in terms of the Kramers equation for the…

统计力学 · 物理学 2022-03-15 Umberto Marini Bettolo Marconi , Andrea Puglisi , Lorenzo Caprini

The paper presents a new type of weakly nonlinear two-scale model of inflatable periodic poroelastic structures saturated by Newtonian fluids. The periodic microstructures incorporate fluid inclusions connected to the fluid channels by…

偏微分方程分析 · 数学 2025-08-28 Eduard Rohan , Vladimír Lukeš

We derive a mathematical model of a nematic electrolyte based on a variational formulation of nematodynamics. Extending our previous work, we consider a general setup which incorporates dielectric anisotropy of the liquid-crystalline matrix…

软凝聚态物质 · 物理学 2016-07-20 O. M. Tovkach , M. Carme Calderer , Dmitry Golovaty , Oleg Lavrentovich , Noel J. Walkington

The hydrodynamic behavior of electron fluids in a certain range of temperatures and densities is well established in graphene and in 2D semiconductor heterostructures. The hydrodynamic regime is intrinsically based on electron-electron…

介观与纳米尺度物理 · 物理学 2023-12-12 Jack N. Engdahl , Aydin Cem Keser , Oleg P. Sushkov

We analyzed the effect of viscoelasticity on the dynamics of fluids in porous media by studying the flow of a Maxwell fluid in a circular tube, in which the flow is induced by a wave traveling on the tube wall. The present study…

流体动力学 · 物理学 2009-11-07 D. Tsiklauri , I. Beresnev

Thermo-osmotic flows - flows generated in micro and nanofluidic systems by thermal gradients - could provide an alternative approach to harvest waste heat. However, such use would require massive thermo-osmotic flows, which are up to now…

流体动力学 · 物理学 2022-01-21 Cecilia Herrero , Michael De San Féliciano , Samy Merabia , Laurent Joly

Darcy's law and the Brinkman equation are two main models used for creeping fluid flows inside moving permeable particles. For these two models, the time derivative and the nonlinear convective terms of fluid velocity are neglected in the…

计算物理 · 物理学 2015-02-10 Liang Wang , Lian-Ping Wang , Zhaoli Guo , Jianchun Mi

Recent progress in fabricating high-quality conductors with small densities of defects has initiated the studies of the viscous electron fluid and has motivated the search for the evidences of the hydrodynamic regime of electron transport.…

介观与纳米尺度物理 · 物理学 2022-08-31 K. S. Denisov , K. A. Baryshnikov , P. S. Alekseev

We demonstrate with computer simulations that anomalous electrokinetic effects, such as ion specificity and non-zero zeta potentials for uncharged surfaces, are generic features of electro-osmotic flow in hydrophobic channels. This behavior…

软凝聚态物质 · 物理学 2009-11-13 David M. Huang , Cecile Cottin-Bizonne , Christophe Ybert , Lyderic Bocquet

A vibrational model of transport properties of dense fluids assumes that solid-like oscillations of atoms around their temporary equilibrium positions dominate the dynamical picture. The temporary equilibrium positions of atoms do not form…

软凝聚态物质 · 物理学 2024-01-09 Sergey Khrapak

Non-Newtonian fluid flow might be driven by spatially nonlocal velocity, the dynamics of which can be described by promising fractional derivative models. This short communication proposes a space FrActional-order Constitutive Equation…

流体动力学 · 物理学 2016-12-13 HongGuang Sun , Yong Zhang , Song Wei , Jianting Zhu

We present a mesoscopic model of the fluid-wall interactions for flows in microchannel geometries. We define a suitable implementation of the boundary conditions for a discrete version of the Boltzmann equations describing a wall-bounded…

混沌动力学 · 物理学 2007-06-13 R. Benzi , L. Biferale , M. Sbragaglia , S. Succi , F. Toschi

An experimental study of flows of the green non-motile Chlorella micro-alga in a plane microchannel is presented. Depending on the value of the cell volume fraction, three distinct flow regimes are observed. For low values of the cell…

软凝聚态物质 · 物理学 2016-03-17 Soulies Antoine , Jeremy Pruvost , Cathy Castelain , Teodor Burghelea

The short-term transient falling dynamics of a dripping water drop in quiescent air has been investigated through both simulation and experiment. The focus is on the short term behavior and the time range considered covers about eight…

流体动力学 · 物理学 2020-03-18 Bo Zhang , Pei-Hsun Tsai , An-Bang Wang , Stéphane Popinet , Stéphane Zaleski , Yue Ling

A scaling analysis is undertaken for the load balance in sliding friction in the hydrodynamic lubrication regime, with a particular emphasis on power-law shear-thinning typical of a structured liquid. It is argued that the shear-thinning…

软凝聚态物质 · 物理学 2023-07-11 Patrick B. Warren

This paper demonstrates a numerical study of heat transfer in a square porous cavity filled with non-Newtonian power-law fluid. A Graphics Processing Unit (GPU) has been used to accelerate the numerical simulation, which uses the…

流体动力学 · 物理学 2021-03-09 Mashnoon Islam , Preetom Nag , Md. Mamun Molla

We investigate the dynamics of a point-like active particle suspended in fluid flow through a straight channel. For this particle-fluid system, we derive a constant of motion for a general unidirectional fluid flow, and apply it to an…

流体动力学 · 物理学 2024-06-04 Rahil N. Valani , Brendan Harding , Yvonne M. Stokes

A 2D numerical hydrodynamics approach is considered for modelling recent experimental results on the oscillation and collective behavior of convective flows. Our simulations consider the rising dynamics of heated fluid columns in a…

流体动力学 · 物理学 2022-07-07 Attila Gergely , Zoltán Néda
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