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We present a molecular dynamics study of the flow of rigid spherical nanoparticles in a simple fluid. We evaluate the viscosity of the dispersion as a function of shear rate and nanoparticle volume fraction. We observe shear thinning…

软凝聚态物质 · 物理学 2020-07-15 Ekin Küçüksönmez , James Servantie

We present three-dimensional numerical simulations, employing the well-established lattice Boltzmann method, and investigate similarities and differences between surfactants and nanoparticles as additives at a fluid-fluid interface. We…

软凝聚态物质 · 物理学 2012-07-26 Stefan Frijters , Florian Günther , Jens Harting

Closed nonrelativistic (nonretarded) theory of conservative and dissipative electromagnetic forces and heat exchange between moving particles (nanoprobes) and a surface (flat and cylindrical) is reviewed. The formalism is based on methods…

介观与纳米尺度物理 · 物理学 2011-03-29 G. V. Dedkov , A. A. Kyasov

Particles transported in fluid flows, such as cells, polymers, or nanorods, are rarely spherical. In this study, we numerically and theoretically investigate the dispersion of an initially localized patch of passive elongated Brownian…

流体动力学 · 物理学 2021-09-15 Ajay Harishankar Kumar , Stuart J. Thomson , Thomas R. Powers , Daniel M. Harris

Advection-diffusion coupling can enhance particle and solute dispersion by orders of magnitude as compared to pure diffusion, with a steady state being reached for confined flow regions such as a nanopore or blood vessel. Here, by using…

Advancing open atmosphere printing technologies to produce features in the nanoscale range has important and broad applications ranging from electronics, to photonics, plasmonics and biology. Recently an electrohydrodynamic printing regime…

软凝聚态物质 · 物理学 2016-10-05 Patrizia Richner , Stephan J. P. Kress , David J. Norris , Dimos Poulikakos

Transport of solid particles in blood flow exhibits qualitative differences in the transport mechanism when the particle varies from nanoscale to microscale size comparable to the red blood cell (RBC). The effect of microscale particle…

软凝聚态物质 · 物理学 2019-10-15 Zixiang Liu , Jonathan R. Clausen , Rekha R. Rao , Cyrus K. Aidun

Controlling the spatial distribution of liquid droplets on surfaces via surface energy patterning can be used to control material delivery to specified regions via selective liquid/solid wetting. While studies of the equilibrium shape of…

软凝聚态物质 · 物理学 2007-05-23 Gary S. Grest , David R. Heine , Edmund B. Webb

Large-scale molecular dynamics simulations are used to simulate a layer of nanoparticles diffusing on the surface of a liquid. Both a low viscosity liquid, represented by Lennard-Jones monomers, and a high viscosity liquid, represented by…

软凝聚态物质 · 物理学 2013-01-10 Shengfeng Cheng , Gary S. Grest

The flow of ions through permeable channels causes voltage drop in physiological nanodomains such as synapses, dendrites and dendritic spines, and other protrusions. How the voltage changes around channels in these nanodomains has remained…

软凝聚态物质 · 物理学 2025-01-10 Frédéric Paquin-Lefebvre , David Holcman

The wetting of solid surfaces can be manoeuvred by altering the energy balance at the interfacial region. While electric field acts favourably to spread a droplet on a rigid surface, this tendency may be significantly suppressed over soft…

软凝聚态物质 · 物理学 2019-05-07 Sumit Kumar , Pawan Kumar , Sunando DasGupta , Suman Chakraborty

We present a versatile setup for investigating the nanofluidic behavior of nanoparticles as a function of the gap distance between two confining surfaces. The setup is designed as an open system which operates with small amounts of…

软凝聚态物质 · 物理学 2017-01-17 Stefan Fringes , Felix Holzner , Armin W. Knoll

We discuss the force and torque acting on spherical particles in an ensemble in the presence of a uniform AC electric field. We show that for a torque causing particle rotation to appear the particle must be absorptive. Our proof includes…

其他凝聚态物理 · 物理学 2015-06-22 F. Claro , R. Fuchs , P. Robles , R. Rojas

The work described is concerned with the way micron-size particles attached to a surface are resuspended when exposed to a turbulent flow. An improved version of the Rock'n'Roll model (Reeks and Hall, 2001) is developed where this model…

流体动力学 · 物理学 2013-01-15 F. Zhang , M. Reeks , M. Kissane

Coagulation growth kinetics of nanoparticles in plasma is affected by inter-particle electrostatic forces due to charging phenomenon. In stationary plasmas, unipolar charging of particles results in retardation of particles growth and may…

等离子体物理 · 物理学 2019-06-26 V. Vekselman , M. N. Shneider , Y. Raitses

The short diffusion lengths in insertion battery nanoparticles render the capacitive behavior of bounded diffusion, which is rarely observable with conventional larger particles, now accessible to impedance measurements. Coupled with…

化学物理 · 物理学 2012-05-31 J. Song , M. Z. Bazant

We show that the dispersive force between a spherical nanoparticle (with a radius $\le$ 100 nm) and a substrate is enhanced by several orders of magnitude when the sphere is near to the substrate. We calculate exactly the dispersive force…

量子物理 · 物理学 2007-05-23 Cecilia Noguez , Carlos E. Roman-Velazquez , R. Esquivel-Sirvent , C. Villarreal

The response of a model micro-electrochemical system to a time-dependent applied voltage is analyzed. The article begins with a fresh historical review including electrochemistry, colloidal science, and microfluidics. The model problem…

软凝聚态物质 · 物理学 2009-11-10 Martin Z. Bazant , Katsuyo Thornton , Armand Ajdari

In order to detect the effect of the surface charge discreteness on the properties at the solid-liquid interface, molecular dynamics simulation model taking consideration of the vibration of wall atoms was used to investigate the ion and…

化学物理 · 物理学 2016-12-20 Yinghua Qiu , Yunfei Chen

The phenomenon of Taylor or shear-induced dispersion of a non-passive scalar field in a pulsatile pipe flow is investigated, accounting for the scalar field's influence on fluid density and transport coefficients. By employing multiple…

流体动力学 · 物理学 2026-03-13 Prabakaran Rajamanickam , Adam D. Weiss
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