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In this work, we use Molecular Dynamics and Lattice-Boltzmann simulations to study the properties of charged Janus particles in an electric field. We show that for relatively small net charge and thick electrostatic diffuse layer mobilities…

软凝聚态物质 · 物理学 2017-09-12 Taras Y. Molotilin , Vladimir Lobaskin , Olga I. Vinogradova

Confinement has been suggested as a tool to tune the self-assembly properties of nanoparticles, surfactants, polymers and colloids. In this way, we explore the phase diagram of Janus nanoparticles using Molecular Dynamics simulations. The…

软凝聚态物质 · 物理学 2016-11-23 José Rafael Bordin , Leandro B. Krott

We study the behaviour of interacting self-propelled particles, whose self-propulsion speed decreases with their local density. By combining direct simulations of the microscopic model with an analysis of the hydrodynamic equations obtained…

统计力学 · 物理学 2012-06-25 F. D. C. Farrell , J. Tailleur , D. Marenduzzo , M. C. Marchetti

We study the dynamics of a self-gravitating cooling filamentary cloud using a simplified model. We concentrate on the radial distribution and restrict ourselves to quasi-hydrostatic, cylindrically symmetric cooling flows. For a power-law…

天体物理学 · 物理学 2009-10-31 Mohsen Shadmehri , Jamshid Ghanbari

We report hot-wire measurements performed in two very different, co- and counter-rotating flows, in normal and superfluid helium at 1.6 K, 2 K, and 2.3 K. As recently reported, the power spectrum of the hot-wire signal in superfluid flows…

We propose a comprehensive theoretical description of hysteresis in capillary condensation of gases in mesoporous disordered materials. Applying mean-field density functional theory to a coarse-grained lattice-gas model, we show that the…

无序系统与神经网络 · 物理学 2009-11-07 M. L. Rosinberg , E. Kierlik , G. Tarjus

We consider thermoosmosis of a near-critical binary fluid mixture, lying in the one-phase region, through a capillary tube in the presence of preferential adsorption of one component. The critical composition is assumed in the two…

软凝聚态物质 · 物理学 2023-09-21 Shunsuke Yabunaka , Youhei Fujitani

Heat transfer by large deformable drops in a turbulent flow is a complex and rich in physics system, in which drops deformation, breakage and coalescence influence the transport of heat. We study this problem coupling direct numerical…

流体动力学 · 物理学 2023-09-26 Francesca Mangani , Alessio Roccon , Francesco Zonta , Alfredo Soldati

The combination of a large superconducting gap, low transition temperature, and quasi two-dimensionality in strongly underdoped high temperature superconductors severely constrains the behavior of the ab-plane superfluid density \rho with…

超导电性 · 物理学 2007-05-23 Igor F. Herbut , Matthew J. Case

We investigate the electronic properties of ballistic planar Josephson junctions with multiple superconducting terminals. Our devices consist of monolayer graphene encapsulated in boron nitride with molybdenum-rhenium contacts. Resistance…

A class of binary mixtures of Janus fluids formed by colloidal spheres with the hydrophobic hemispheres constrained to point either up or down are studied by means of Gibbs ensemble Monte Carlo simulations and simple analytical…

软凝聚态物质 · 物理学 2013-11-14 Riccardo Fantoni , Achille Giacometti , Miguel Ángel G. Maestre , Andrés Santos

In a spherically symmetric plasma constrained by its own gravity, the ionization degree lags behind changes in temperature and density. The ambipolar electric field accelerates ions radially and cools electrons. Ions lose energy and angular…

星系天体物理 · 物理学 2024-08-13 Haibin Chen , Rong Wu

We analyze in details the atomistic response of a model amorphous material submitted to plastic shear in the athermal, quasistatic limit. After a linear stress-strain behavior, the system undergoes a noisy plastic flow. We show that the…

材料科学 · 物理学 2009-11-11 Anne Tanguy , Fabien Leonforte , J. -L. Barrat

The thermodynamical quantities and response functions are useful to describe the particle production in heavy-ion collisions as they reveal crucial information about the produced system. While the study of isothermal compressibility…

高能物理 - 唯象学 · 物理学 2023-04-07 Shubahngi Jain , Rohit Gupta , Satyajit Jena

This article represents a set of results numerically studied in the framework of laminar double diffusive natural convection. We have investigated the thermophysical comportment of Water-based incompressible nanofluids circulating, due to…

流体动力学 · 物理学 2023-02-01 Yassine Barhoumi

The turbulent diffusion of Lagrangian tracer particles has been studied in a flow on the surface of a large tank of water and in computer simulations. The effect of flow compressibility is captured in images of particle fields. The velocity…

混沌动力学 · 物理学 2009-11-10 John R. Cressman , Walter I. Goldburg , Joerg Schumacher

We consider hot, two-temperature, viscous accretion onto a rotating, unmagnetized neutron star. We assume Coulomb coupling betweenthe protons and electrons, and free-free cooling from the electrons. We show that the accretion flow has an…

天体物理学 · 物理学 2009-10-31 Mikhail V. Medvedev , Ramesh Narayan

Using the high temperature approximation we study, within the linear response theory, the wake in the quark-gluon plasma by a fast parton owing to dynamical screening in the space like region. When the parton moves with a speed less than…

高能物理 - 唯象学 · 物理学 2008-11-26 Purnendu Chakraborty , Munshi G. Mustafa , Markus H. Thoma

We investigate the equilibrium orientation and adsorption process of a single, ellipsoidal Janus particle at a fluid-fluid interface. The particle surface comprises equally sized parts that are hydrophobic or hydrophilic. We present free…

软凝聚态物质 · 物理学 2020-09-30 Florian Günther , Qingguang Xie , Jens Harting

Equilibrium molecular dynamics simulation and the Green-Kubo formalism were used to calculate self-diffusion coefficient, shear viscosity,and thermal conductivity for 30 different quadrupolar two-center Lennard-Jones fluids along the bubble…

化学物理 · 物理学 2009-06-18 G. A. Fernandez , J. Vrabec , H. Hasse