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Pressure controlled displacement of an oil/water interface is studied in dense packings of functionalized glass beads with well-defined spatial wettability correlations. An enhanced dissipation is observed if the typical extension $\xi$ of…

The phase behavior of liquids confined in a slit geometry does not reveal a crossover from a three to a two-dimensional behavior as the gap size decreases. Indeed, the prototypical two-dimensional hexatic phase only occurs in liquids…

软凝聚态物质 · 物理学 2021-07-27 Jing Yang , Yan-Wei Li , Massimo Pica Ciamarra

We use a microscopic density functional theory based on Wertheim's first order thermodynamic perturbation theory to study wetting behavior of athermal mixtures of colloids and excluded-volume polymers. In opposition to the wetting behavior…

软凝聚态物质 · 物理学 2007-05-23 Pawel Bryk

A simple Lennard-Jones fluid confined in a slit nanopore with hard walls is studied on the basis of a multilayer structured model. Each layer is homogeneous and parallel to the walls of the pore. The Helmholtz energy of this system is…

介观与纳米尺度物理 · 物理学 2010-03-17 G. J. Zarragoicoechea , A. G. Meyra , V. A. Kuz

Previously, it has been shown that the direct correlation function for a Lennard-Jones fluid could be modeled by a sum of that for hard-spheres, a mean-field tail and a simple linear correction in the core region constructed so as to…

统计力学 · 物理学 2008-08-20 James F. Lutsko

We use density functional theory to investigate adsorption of liquid mixtures on solid surfaces modified with end-grafted chains. The chains are modelled as freely joined spheres. The fluid molecules are spherical. All spherical species…

软凝聚态物质 · 物理学 2016-03-08 M. Borówko , T. Staszewski

Heterogeneous condensation of vapours mixed with a carrier gas in the stagnation point boundary layer flow near a cold wall is considered in the presence of solid particles much larger than the mean free path of vapour particles. The…

其他凝聚态物理 · 物理学 2009-07-22 J. C. Neu , A. Carpio , L. L. Bonilla

We report comprehensive simulations of the critical dynamics of a symmetric binary Lennard-Jones mixture near its consolute point. The self-diffusion coefficient exhibits no detectable anomaly. The data for the shear viscosity and the…

统计力学 · 物理学 2009-11-11 Subir K. Das , Michael E. Fisher , Jan V. Sengers , Juergen Horbach , Kurt Binder

We consider the thermal undulation, or shape fluctuation, of an almost planar fluid membrane surrounded by the same near-critical binary fluid mixtures on both sides. A weak preferential attraction is assumed between the membrane and one…

软凝聚态物质 · 物理学 2015-10-13 Youhei Fujitani

By using the Rosenfeld density functional we determine the number density profiles of both components of binary hard-sphere fluids close to a planar hard wall as well as the corresponding excess coverage and surface tension. The comparison…

软凝聚态物质 · 物理学 2009-10-31 R. Roth , S. Dietrich

We simulate a hard-sphere liquid in confined geometry where the separation of the two parallel, hard walls is smaller than two particle diameters. By systematically reducing the wall separation we analyze the behavior of structural and…

软凝聚态物质 · 物理学 2022-08-18 Gerhard Jung , Thomas Franosch

The wetting and filling properties of a fluid adsorbed on a solid grooved substrate are studied by means of a microscopic density functional theory. The grooved substrates are modelled using a solid slab, interacting with the fluid…

介观与纳米尺度物理 · 物理学 2015-06-17 Alexandr Malijevsky

It is well known that the increase of the spatial dimensionality enhances the fluid-fluid demixing of a binary mixture of hard hyperspheres, i.e. the demixing occurs for lower mixture size asymmetry as compared to the three-dimensional…

软凝聚态物质 · 物理学 2015-05-19 Luis Lafuente , Yuri Martinez-Raton

We study the adsorption of a fluid in the grand canonical ensemble occurring at a planar heterogeneous wall which is decorated with a chemical stripe of width $L$. We suppose that the material of the stripe strongly preferentially adsorbs…

统计力学 · 物理学 2017-08-30 Alexandr Malijevský , Andrew O. Parry , Martin Pospíšil

The maximum speed at which a liquid can wet a solid is limited by the need to displace gas lubrication films in front of the moving contact line. The characteristic height of these films is often comparable to the mean free path in the gas…

流体动力学 · 物理学 2017-04-05 James E. Sprittles

We present a density functional study of Lennard-Jones liquids in contact with a nano-corrugated wall. The corresponding substrate potential is taken to exhibit a repulsive hard core and a van der Waals attraction. The corrugation is…

统计力学 · 物理学 2014-11-24 Swarn Lata Singh , Lothar Schimmele , S. Dietrich

We study the influence of mobility of the confining media in the structural and dynamical properties of a core-softened fluid under confinement. The fluid is modeled using a two-length scale potential, which reproduces in bulk the anomalous…

软凝聚态物质 · 物理学 2013-06-17 Leandro Batirolla Krott , José Rafael Bordin

Directed motion of liquid droplets is of considerable importance in various industrial processes. Despite extensive advances in this field of research, our understanding and the ability to control droplet dynamics at high temperature remain…

流体动力学 · 物理学 2015-12-23 Jing Li , Youmin Hou , Yahua Liu , Chonglei Hao , Minfei Li , Manoj K. Chaudhury , Shuhuai Yao

The phase diagram of a binary fluid mixture of highly asymmetric additive hard spheres is investigated. Demixing is analyzed from the exact low-density expansions of the thermodynamic properties of the mixture and compared with the…

软凝聚态物质 · 物理学 2007-05-23 C. F. Tejero , M. Lopez de Haro

We investigate the behavior of the slip length in Newtonian liquids subject to planar shear bounded by substrates with mixed boundary conditions. The upper wall, consisting of a homogenous surface of finite or vanishing slip, moves at a…

软凝聚态物质 · 物理学 2009-11-10 Nikolai V. Priezjev , Anton A. Darhuber , Sandra M. Troian