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Results of a systematic investigation of the vapour-liquid equilibria of 38 individual two-centre Lennard-Jones plus axial pointdipole model fluids (2CLJD) are reported over a range of reduced dipolar momentum 0 $\le \mu^{*2} \le$ 20 and of…

计算物理 · 物理学 2009-04-23 Jürgen Stoll , Jadran Vrabec , Hans Hasse

We report a Monte Carlo finite-size scaling study of the demixing transition of a symmetrical Lennard-Jones binary fluid mixture. For equal concentration of species, and for a choice of the unlike-to-like interaction ratio delta=0.7, this…

统计力学 · 物理学 2009-11-10 Nigel B. Wilding

The planar surface tension of coexisting liquid and vapor phases of a fluid of Lennard-Jones atoms is studied as a function of the range of the potential using both Monte Carlo simulations and Density Functional Theory. The interaction…

统计力学 · 物理学 2009-11-13 Patrick Grosfils , James F. Lutsko

The thermodynamic behavior of a fluid near a vapor-liquid and, hence, asymmetric critical point is discussed within a general ``complete'' scaling theory incorporating pressure mixing in the nonlinear scaling fields as well as corrections…

统计力学 · 物理学 2009-11-07 Young C. Kim , Michael E. Fisher , G. Orkoulas

Results of a systematic investigation of the vapour-liquid equilibria (VLE) of 30 individual two-centre Lennard-Jones plus pointquadrupole model fluids (2CLJQ) are reported over a range of reduced quadrupolar momentum $0 \le Q^{*2} \le 4$…

化学物理 · 物理学 2009-04-24 J. Stoll , J. Vrabec , H. Hasse

It is demonstrated by molecular dynamics simulations that liquids interacting via the Buckingham potential are strongly correlating, i.e., have regions of their phase diagram where constant-volume equilibrium fluctuations in the virial and…

软凝聚态物质 · 物理学 2012-03-27 Arno A. Veldhorst , Lasse Bøhling , Jeppe C. Dyre , Thomas B. Schrøder

The gas-liquid phase transition of the three-dimensional Lennard-Jones particles system is studied by molecular dynamics simulations. The gas and liquid densities in the coexisting state are determined with high accuracy. The critical point…

统计力学 · 物理学 2013-11-28 Hiroshi Watanabe , Nobuyasu Ito , Chin-Kun Hu

In this paper we apply the entropy principle to the relativistic version of the differential equations describing a standard fluid flow, that is, the equations for mass, momentum, and a system for the energy matrix. These are the second…

数学物理 · 物理学 2018-02-22 Hans Wilhelm Alt

We use molecular dynamics simulation results on viscous binary Lennard-Jones mixtures to examine the correlation between the potential energy and the virial. In accord with a recent proposal [U. R. Pedersen et. al. Phys. Rev. Lett. 100,…

统计力学 · 物理学 2009-01-08 D. Coslovich , C. M. Roland

The paper contains a development of the previously proposed generalized lattice model (GLM). In contrast to usual lattice models, the difference of the specific atomic volumes of the components is taken in account in GLM. In addition to…

统计力学 · 物理学 2010-03-16 A. Yu. Zakharov , A. A. Schneider , A. L. Udovsky

We derive an explicit analytic expression for the first quantum correction to the second virial coefficient of a $d$-dimensional fluid whose particles interact via the generalized Lennard-Jones $(2n,n)$ potential. By introducing an…

统计力学 · 物理学 2025-12-12 Daniel Parejo , Andrés Santos

We show that, along the critical isobar, the complete scaling results in a unique leading scaling qualitatively distinct to that arising from the simple and the revised scalings. This is verified by a complete-field finite-time scaling…

统计力学 · 物理学 2015-08-17 Yankui Wang , Ji Liu , Jiajie Xiao , Fan Zhong

This paper investigates the relation between the density-scaling exponent $\gamma$ and the virial potential-energy correlation coefficient $R$ at several thermodynamic state points in three dimensions for the generalized $(2n,n)$…

软凝聚态物质 · 物理学 2024-01-17 Ida M. Friisberg , Lorenzo Costigliola , Jeppe C. Dyre

In the current work we revisit the pair-potential recently proposed by Wang et al. (Phys. Chem. Chem. Phys. 10624, 22, 2020) as a well defined finite-range alternative to the widely used Lennard-Jones interaction model. The advantage of…

材料科学 · 物理学 2024-07-23 Omar-Farouk Adesida , Sebastian Havens , Livia B. Partay

We investigate the collective behavior of an Ising lattice gas, driven to non-equilibrium steady states by being coupled to {\em two} thermal baths. Monte Carlo methods are applied to a two-dimensional system in which one of the baths is…

统计力学 · 物理学 2009-10-31 E. L. Praestgaard , B. Schmittmann , R. K. P. Zia

A theory for chemical reaction dynamics in condensed phase systems based on the generalized Langevin formalism of Grote and Hynes is presented. A microscopic approach to calculate the dynamic friction is developed within the framework of a…

统计力学 · 物理学 2009-11-10 Nurit Shental , Eran Rabani

Combining the second-order entropy flow vector of the causal Israel-Stewart theory with the conformal Killing-vector property of $u_{i}/T$, where $u_{i}$ is the four-velocity of the medium and T its equilibrium temperature, we investigate…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Winfried Zimdahl , J'er^ome Gariel , G'erard Le Denmat

By combining accurate liquid-vapor coexistence and heat-capacity data, we have unambiguously separated two non-analytical contributions of liquid-gas asymmetry in fluid criticality and proved the validity of "complete scaling" [Fisher et…

统计力学 · 物理学 2009-11-11 Mikhail A. Anisimov , Jingtao Wang

Systems of particles interacting via inverse-power law potentials have an invariance with respect to changes in length and temperature, implying a correspondence in the dynamics and thermodynamics between different `isomorphic' sets of…

统计力学 · 物理学 2016-08-03 Thibaud Maimbourg , Jorge Kurchan

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