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相关论文: The excess equimolar radius of liquid drops

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In this paper we study the formation of nanodrops on curved surfaces (both convex and concave) by means of molecular dynamics simulations, where the particles interact via a Lennard-Jones potential. We find that the contact angle is not…

流体动力学 · 物理学 2017-07-14 Shantanu Maheshwari , Martin van der Hoef , Detlef Lohse

Due to the simultaneous presence of bulk-like and interfacial fluctuations the understanding of the structure of liquid-vapour interfaces poses a long-lasting and ongoing challenge for experiments, theory, and simulations. We provide a new…

统计力学 · 物理学 2015-02-24 F. Höfling , S. Dietrich

We propose diagrams representing the equilibrium morphologies of two immiscible liquid droplets brought into contact. We study the dependence of the shape of the droplets on the surface tensions and ratio of volumes. We study theoretically…

软凝聚态物质 · 物理学 2014-09-25 J. Guzowski , P. Garstecki , P. Korczyk

Within the coexistence region between liquid and vapor the equilibrium pressure of a simulated fluid exhibits characteristic jumps and plateaus when plotted as a function of density at constant temperature. These features exclusively…

统计力学 · 物理学 2015-09-09 S. Prestipino , C. Caccamo , D. Costa , G. Malescio , G. Munaò

Evidence for capillary waves at a liquid/vapor interface are presented from extensive molecular dynamics simulations of a system containing up to 1.24 million Lennard-Jones particles. Careful measurements show that the total interfacial…

统计力学 · 物理学 2009-10-31 Scott W. Sides , Gary S. Grest , Martin-D. Lacasse

The relationship between the volume and surface energy coefficients in the liquid drop A^{-1/3} expansion of nuclear masses is discussed. The volume and surface coefficients in the liquid drop expansion share the same physical origin and…

核理论 · 物理学 2013-05-30 Luciano G. Moretto , James B. Elliott , Peter T. Lake , Larry Phair

We theoretically investigate the apparent contact angle of droplets on liquid infused surfaces as a function of the relative size of the wetting ridge and the deposited droplet. We provide an intuitive geometrical interpretation whereby the…

软凝聚态物质 · 物理学 2021-05-12 Ciro Semprebon , Muhammad Subkhi Sadullah , Glen McHale , Halim Kusumaatmaja

A novel mechanical approach is developed to explore by means of atom-scale simulation the concept of line tension at a solid-liquid-vapor contact line as well as its dependence on temperature, confinement, and solid/fluid interactions. More…

介观与纳米尺度物理 · 物理学 2020-03-18 Romain Bey , Benoit Coasne , Cyril Picard

Wetting is a widespread phenomenon, most prominent in a number of cases, both in nature and technology. Droplets of pure water with initial radius ranging from 20 to 80 [\AA] spreading on graphitic surfaces are studied by molecular dynamics…

化学物理 · 物理学 2012-08-28 Danilo Sergi , Giulio Scocchi , Alberto Ortona

We study the motion of a two-dimensional droplet on an inclined surface, under the action of gravity, using a diffuse interface model which allows for arbitrary equilibrium contact angles. The kinematics of motion is analysed by decomposing…

软凝聚态物质 · 物理学 2015-03-19 Sumesh P. Thampi , Ronojoy Adhikari , Rama Govindarajan

We consider the spreading of a thin two-dimensional droplet on a planar substrate as a prototype system to compare the contemporary model for contact line motion based on interface formation of Shikhmurzaev [Int. J. Multiphas. Flow 19, 589…

流体动力学 · 物理学 2012-08-17 David N. Sibley , Nikos Savva , Serafim Kalliadasis

Drop deformation in shear flow is determined up to second order theory in Ca while considering kinetic effects on surfactants distributions in steady state. Surfactants inside the drop are adsorbed faster than those on the surface leading…

软凝聚态物质 · 物理学 2024-10-24 Paul Regazzi , Marc Leonetti

Curved fluid interfaces are investigated on the nanometre length scale by molecular dynamics simulation. Thereby, droplets surrounded by a metastable vapour phase are stabilized in the canonical ensemble. Analogous simulations are conducted…

Surface tension is a key parameter for understanding nucleation from the very initial stage of phase transformation. Although surface tension has been predicted to vary with the curvature of the liquid-vapor interface, particularly at the…

介观与纳米尺度物理 · 物理学 2020-10-13 Dohyun Kim , Jongwoo Kim , Jonggeun Hwang , Dongha Shin , Sangmin An , Wonho Jhe

Molecular models of real fluids are validated by comparing the vapor-liquid surface tension from molecular dynamics (MD) simulation to correlations of experimental data. The considered molecular models consist of up to 28 interaction sites,…

计算物理 · 物理学 2016-08-16 Stephan Werth , Martin Horsch , Hans Hasse

We estimate the liquid-vapour surface tension from simulations of TIP4P/2005 water nanodroplets of size $N$=100 to 2880 molecules over a temperature $T$ range of 180 K to 300 K. We compute the planar surface tension $\gamma_p$, the…

软凝聚态物质 · 物理学 2019-07-24 Shahrazad M. A. Malek , Peter H. Poole , Ivan Saika-Voivod

We propose a theoretical framework to predict the three-dimensional shapes of optically deformed micron-sized emulsion droplets with ultra-low interfacial tension. The resulting shape and size of the droplet arises out of a balance between…

软凝聚态物质 · 物理学 2015-06-16 David Tapp , Jonathan M. Taylor , Alex S. Lubanksy , Colin D. Bain , Buddhapriya Chakrabarti

The effects of line tension on the morphology of a sessile droplet placed on top of a convex spherical substrate are studied. The morphology of the droplet is determined from the global minimum of the Helmholtz free energy. The contact…

软凝聚态物质 · 物理学 2016-05-25 Masao Iwamatsu

We consider the problem of a cylindrical (quasi-two-dimensional) droplet impacting on a hard surface. Cylindrical droplet impact can be engineered in the laboratory, and a theoretical model of the system can also be used to shed light on…

流体动力学 · 物理学 2026-01-14 Lennon Ó Náraigh , Nicola Young

Microscopic multiphase flows have gained broad interest due to their capability to transfer processes into new operational windows and achieving significant process intensification. However, the hydrodynamic behavior of Taylor droplets is…

流体动力学 · 物理学 2019-09-04 Thorben Helmers , Philip Kemper , Jorg Thöming , Ulrich Mießner