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相关论文: Wetting of a symmetrical binary fluid mixture on a…

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The dynamic and static critical behavior of five binary Lennard-Jones liquid mixtures, close to their continuous demixing points (belonging to the so-called model H' dynamic universality class), are studied computationally by combining…

统计力学 · 物理学 2018-03-09 Sutapa Roy , S. Dietrich , Felix Höfling

We investigate phase separation of near-critical binary mixtures between parallel symmetric walls in the strong adsorption regime. We take into account the renormalization effect due to the critical fluctuations using the recent local…

软凝聚态物质 · 物理学 2013-08-21 Shunsuke Yabunaka , Ryuichi Okamoto , Akira Onuki

When a solid substrate is withdrawn from a bath of simple, partially wetting, nonvolatile liquid, one typically distinguishes two regimes, namely, after withdrawal the substrate is macroscopically dry or homogeneously coated by a liquid…

流体动力学 · 物理学 2019-12-18 Walter Tewes , Markus Wilczek , Svetlana V. Gurevich , Uwe Thiele

We investigate the influence of side-wall wetting on the linear stability of falling liquid films confined in the spanwise direction. A biglobal stability framework is developed, capturing inertia, viscosity, gravity, capillarity, and…

流体动力学 · 物理学 2026-05-19 Hammam Mohamed , Jörn Sesterhenn

We present the results of molecular dynamics computer simulations of a binary Lennard-Jones liquid confined between two parallel rough walls. These walls are realized by frozen amorphous configurations of the same liquid and therefore the…

凝聚态物理 · 物理学 2009-09-29 Peter Scheidler , Walter Kob , Kurt Binder

A continuous surface wetting transition, pinned to a solid/liquid/liquid/vapor tetra coexistence point, is studied by x-ray reflectivity in liquid Ga-Bi binary alloys. The short-range surface potential is determined from the measured…

A microscopic approach to the investigation of the behaviour of a symmetrical binary fluid mixture in the vicinity of the vapour-liquid critical point is proposed. It is shown that the problem can be reduced to the calculation of the…

凝聚态物理 · 物理学 2009-10-31 O. V. Patsahan , M. P. Kozlovskii , R. S. Melnyk

We study the diffusion-driven kinetics of phase separation of a symmetric binary mixture (AB), confined in a thin-film geometry between two parallel walls. We consider cases where (a) both walls preferentially attract the same component…

软凝聚态物质 · 物理学 2009-11-11 Subir K. Das , Sanjay Puri , Juergen Horbach , Kurt Binder

We study the influence of the surface orientation on the wetting behavior of bcc binary alloys, using a semi-infinite lattice model equivalent to a nearest-neighbor Ising antiferromagnet in an external field. The salient feature of the…

统计力学 · 物理学 2008-02-03 R. Leidl , A. Drewitz , H. W. Diehl

Within an Onsager-like density functional theory we explore the thermodynamic and structural properties of an isotropic and nematic fluid of hard needle-like colloids in contact with a hard substrate coated with a soft short-ranged…

软凝聚态物质 · 物理学 2009-11-11 K. Shundyak , R. van Roij

Critical wetting is an elusive phenomenon for solid-fluid interfaces. Using interfacial models we show that the diverging length scales, which characterize complete wetting at an apex, precisely mimic critical wetting with the apex angle…

统计力学 · 物理学 2009-11-07 A. O. Parry , M. J. Greenall , J. M. Romero-Enrique

The surface freezing and surface melting transitions exhibited by a model two-dimensional soft matter system is studied. The behaviour when confined within a wedge is also considered. The system consists of particles interacting via a soft…

软凝聚态物质 · 物理学 2016-05-25 Andrew J. Archer , Alexandr Malijevsky

The surface phase behavior of binary mixtures of colloidal hard rods in contact with a solid substrate (hard wall) is studied, with special emphasis on the region of the phase diagram that includes the smectic A phase. The colloidal rods…

软凝聚态物质 · 物理学 2010-12-17 Daniel de las Heras , Yuri Martínez-Ratón , Enrique Velasco

Depletion of the liquid density near a solid surface with a weak long-range fluid-surface interaction was studied by computer simulations of the liquid-vapor coexistence of a LJ fluid confined in slitlike pores. In a wide temperature range…

统计力学 · 物理学 2015-06-25 A. Oleinikova , I. Brovchenko , A. Geiger

The adsorption of Ar on substrates of Li is investigated within the framework of a density functional theory which includes an effective pair potential recently proposed. This approach yields good results for the surface tension of the…

软凝聚态物质 · 物理学 2009-09-14 Salvador A. Sartarelli , Leszek Szybisz

We consider the demixing of a binary fluid mixture, under gravity, which is steadily driven into a two phase region by slowly ramping the temperature. We assume, as a first approximation, that the system remains spatially isothermal, and…

软凝聚态物质 · 物理学 2009-11-10 M. E. Cates , J. Vollmer , A. Wagner , D. Vollmer

We consider a nano-patterned planar wall consisting of a periodic array of stripes of width $L$, which are completely wet by liquid (contact angle $\theta=0$), separated by regions of width $D$ which are completely dry (contact angle…

统计力学 · 物理学 2019-10-02 Martin Pospisil , Martin Láska , Andrew O. Parry , Alexandr Malijevský

In this communication we demonstrate the existence of a first-order prewetting transition of a supracritical model polymer solution adjacent to an attractive surface. The model fluid we use mimics (qualitatively) an aqueous polyethylene…

软凝聚态物质 · 物理学 2024-10-28 Jan Forsman , Clifford E. Woodward

We consider fluid wetting on a corrugated substrate using effective interfacial Hamiltonian theory and show that breaking the translational invariance along the wall can induce an 'unbending' phase transition in addition to unbinding. Both…

软凝聚态物质 · 物理学 2009-10-31 C. Rascon , A. O. Parry , A. Sartori

Density functional theory is used to study colloidal hard-rod fluids near an individual right-angled wedge or edge as well as near a hard wall which is periodically patterned with rectangular barriers. The Zwanzig model, in which the…

软凝聚态物质 · 物理学 2009-11-10 L. Harnau , F. Penna , S. Dietrich