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In this paper, effect of physical parameters in presence of magnetic field on heat transfer and flow of third grade non-Newtonian Nanofluid in a porous medium with annular cross sectional analytically has been investigated. The viscosity of…

Degradation in performances of air conditioners and refrigerators is caused by a frost formation and adhesion on the surface. In the present study, by means of the classical molecular dynamics simulation, we investigate how and how much the…

介观与纳米尺度物理 · 物理学 2021-04-14 Yoshitaka Ueki , Satoshi Matsuo , Masahiko Shibahara

We have performed quantum Monte Carlo simulations measuring the finite size and temperature superfluid response of helium-4 to the linear and rotational motion of the walls of a nanopore. Within the two-fluid model, the portion of the…

介观与纳米尺度物理 · 物理学 2013-09-04 B. Kulchytskyy , G. Gervais , A. Del Maestro

Nanometer-sized columns of condensed water molecules are created by an atomic-resolution force microscope operated in ambient conditions. Unusual stepwise decrease of the force gradient associated with the thin water bridge in the…

流体动力学 · 物理学 2009-11-11 H. Choe , M. -H. Hong , Y. Seo , K. Lee , G. Kim , Y. Cho , J. Ihm , and W. Jhe

Nanoscopic pores are used in various systems to attract nanoparticles. In general the behaviour is a result of two types of interactions: the material specific affinity and the solvent-mediated influence also called the depletion force. The…

软凝聚态物质 · 物理学 2018-03-02 Julien Lam , James F. Lutsko

The detailed nature of spatially heterogeneous dynamics of glycerol-silica nanocomposites is unraveled by combining dielectric spectroscopy with atomistic simulation and statistical mechanical theory. Analysis of the spatial mobility…

We used single-molecule tracking to probe the local rheology of interfacial water. Fluorescent rhodamine molecules were tracked on silica surfaces as a function of ambient relative humidity, which controlled the thickness of condensed water…

软凝聚态物质 · 物理学 2020-01-20 Raphael Sarfati , Daniel K. Schwartz

We have used non-equilibrium molecular dynamics to simulate the flow of water molecules around a charged nanoparticle described at the atomic scale. These non-equilibrium simulations allowed us to compute the friction coefficient of the…

软凝聚态物质 · 物理学 2020-02-03 Lisa B. Weiss , Vincent Dahirel , Virginie Marry , Marie Jardat

The shear viscosity coefficient of the one-component plasma is calculated with unprecedented accuracy using equilibrium molecular dynamics simulations and the Green-Kubo relation. Numerical and statistical uncertainties and their mitigation…

等离子体物理 · 物理学 2014-10-13 Jerome Daligault , Kim O. Rasmussen , Scott D. Baalrud

Molecular dynamics simulations are used to study capillary adhesion from a nanometer scale liquid bridge between two parallel flat solid surfaces. The capillary force and the meniscus shape of the bridge are computed as the separation…

软凝聚态物质 · 物理学 2016-08-19 Shengfeng Cheng , Mark O. Robbins

The linear stability of nanofluid boundary-layer flow over a flat plate is investigated using a two-phase model that incorporates Brownian motion and thermophoresis, building upon the earlier work of Buongiorno (2006). Solutions to the…

流体动力学 · 物理学 2025-12-04 Christian Thomas , Sharon O. Stephen , Jitesh. S. B. Gajjar , Paul T. Griffiths

Ionic liquids have generated interest in applications as lubricants and as additives to conventional lubricants due to their unique physical properties. In these applications, the liquid thin film can be subjected simultaneously to…

软凝聚态物质 · 物理学 2023-04-17 Kalil Bernardino , Mauro C. C. Ribeiro

It is shown that the hydrodynamic modes of a dilute granular gas of inelastic hard spheres can be identified, and calculated in the long wavelength limit. Assuming they dominate at long times, formal expressions for the Navier-Stokes…

统计力学 · 物理学 2009-11-10 J. Javier Brey , M. J. Ruiz-Montero , P. Maynar , I. Garcia de Soria

Understanding heat transfer characteristics of phase change and enhancing thermal energy transport in nanoscale are of great interest in both theoretical and practical applications. In the present study, we investigated the nanoscale…

计算物理 · 物理学 2016-04-11 Li Li , Pengfei Ji , Yuwen Zhang

Nanofluids are suspensions of nanoparticles in a base heat-transfer liquid. They have been widely investigated to boost heat transfer since they were proposed in the 1990's. We present a statistical correlation analysis of experimentally…

软凝聚态物质 · 物理学 2021-11-11 J. Tielke , M. Maas , M. Castillo , K. Rezwan , M. Avila

We propose a numerical approach to regularize the contact line singularity appearing in the computation of viscous capillary-gravity waves with moving contact line in cylindrical containers. The linearized Navier-Stokes equations are…

流体动力学 · 物理学 2022-07-15 Alessandro Bongarzone , Francois Gallaire

The impact of nanomaterials on lung fluids or on the plasma membrane of living cells has prompted researchers to examine the interactions between nanoparticles and lipid vesicles. Recent studies have shown that nanoparticle-lipid…

软凝聚态物质 · 物理学 2021-09-21 F. Mousseau , E. K. Oikonomou , V. Baldim , S. Mornet , J. -F. Berret

Inhaled nanoparticles (< 100 nm) reaching the deep lung region first interact with the pulmonary surfactant, a thin lipid film lining the alveolar epithelium. To date, most biophysical studies have focused on particle induced modifications…

软凝聚态物质 · 物理学 2021-09-21 L. P. A. Thai , F. Mousseau , E. K. Oikonomou , M. Radiom , J. -F. Berret

Hypothesis: Sample-spanning particle networks are used to induce structure and a yield stress, necessary for 3D printing of porous ceramics and paints. In capillary suspensions, a small quantity of immiscible secondary fluid is incorporated…

软凝聚态物质 · 物理学 2024-04-17 Lingyue Liu , Jens Allard , Erin Koos

We study surface nanobubbles using molecular dynamics simulation of ternary (gas, liquid, solid) systems of Lennard-Jones fluids. They form for sufficiently low gas solubility in the liquid, i.e., for large relative gas concentration. For…

流体动力学 · 物理学 2012-11-19 J. H. Weijs , J. H. Snoeijer , D. Lohse