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We subject to scrutiny the physical consistency of adopting the perfect-gas thermodynamic model within self-gravitation circumstances by studying the fluid statics of a self-gravitating isothermal sphere with the van der Waals'…

A generalized Van der Waals approach is developed for anisotropic fluids in disordered porous media. As the reference system a hard spherocylinder fluid in a disordered porous medium is considered and described in the framework of the…

软凝聚态物质 · 物理学 2020-03-05 M. F. Holovko , V. I. Shmotolokha

Fluctuating hydrodynamics provides a model for fluids at mesoscopic scales where thermal fluctuations can have a significant impact on the behavior of the system. Here we investigate a model for fluctuating hydrodynamics of a single…

流体动力学 · 物理学 2015-06-22 Anuj Chaudhri , John B. Bell , Alejandro L. Garcia , Aleksandar Donev

A practical correction formula relating the self-diffusion coefficient of dense liquids from molecular dynamics simulations with periodic boundary conditions to the self-diffusion coefficient in the thermodynamic limit is discussed. This…

统计力学 · 物理学 2024-02-15 Sergey Khrapak

A simple kinetic model, which is presumably minimum, for the phase transition of the van der Waals fluid is presented. In the model, intermolecular collisions for a dense gas has not been treated faithfully. Instead, the expected…

流体动力学 · 物理学 2018-06-05 Shigeru Takata , Takashi Noguchi

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

In this report, an analytic model to predict phase transitions of confined fluids in nano systems is presented and it is used to predict the behavior of the confined fluid in nanotubes and nanoslits. In our approach besides including a…

介观与纳米尺度物理 · 物理学 2018-04-02 T. Keshavarzi , R. Sohrabi , G. A. Mansoori

Models that describe Newtonian liquid films evolving due to the competing effects of surface tension and attractive intermolecular or van der Waals forces are known to rupture in finite time in a self-similar manner. We extend the…

软凝聚态物质 · 物理学 2026-05-19 Michael C Dallaston , Steven A Kedda , Scott W McCue

We investigate consistent charged black hole solutions to the Einstein-Maxwell-Dilaton (EMD) equations that are asymptotically AdS. The solutions are gravity duals to phases of a non-conformal plasma at finite temperature and density. For…

高能物理 - 理论 · 物理学 2020-12-07 Alfonso Ballon-Bayona , Henrique Boschi-Filho , Eduardo Folco Capossoli , Diego M. Rodrigues

Critical phenomena emerging from the critical end point of a first-order transition are ubiquitous in nature. Here we bring the concept of a supercritical crossover, the Widom line, initially developed in the context of fluids, into the…

高能物理 - 唯象学 · 物理学 2024-06-17 G. Sordi , A. -M. S. Tremblay

Soft particulate media include a wide range of systems involving athermal dissipative particles both in non-living and biological materials. Characterization of flows of particulate media is of great practical and theoretical importance. A…

统计力学 · 物理学 2017-04-25 S. H. E. Rahbari , A. A. Saberi , H. Park , J. Vollmer

Fluid three-phase equilibria, with phases $\alpha, \beta, \gamma$, are studied close to a tricritical point, analytically and numerically, in a mean-field density-functional theory with two densities. Employing Griffiths' scaling for the…

统计力学 · 物理学 2025-10-30 Joseph O. Indekeu , Kenichiro Koga

A systematic study of the leading isotropic van der Waals coefficients for the alkali-metal atom + molecule and molecule + molecule systems is presented. Dipole moments and static and dynamic dipole polarizabilities are calculated employing…

原子物理 · 物理学 2013-02-22 P. S. Zuchowski , M. Kosicki , M. Kodrycka , P. Soldan

An analytical model of non-Gaussian energy landscape of low-temperature fluids is developed based on the thermodynamics of the fluid of dipolar hard spheres. The entire excitation profile of the liquid, from the high temperatures to the…

软凝聚态物质 · 物理学 2009-11-13 Dmitry V. Matyushov

We consider a Fermi gas with short-range attractive interactions that is confined along one direction by a tight harmonic potential. For this quasi-two-dimensional (quasi-2D) Fermi gas, we compute the pressure equation of state, radio…

量子气体 · 物理学 2014-12-08 Andrea M. Fischer , Meera M. Parish

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

We present a long-wavelength approximation to the Navier-Stokes Cahn-Hilliard equations to describe phase separation in thin films. The equations we derive underscore the coupled behaviour of free-surface variations and phase separation.…

偏微分方程分析 · 数学 2008-05-08 Lennon O Naraigh , Jean-Luc Thiffeault

We investigate phase transitions and critical phenomena of four dimensional dyonic charged AdS black holes in the framework of thermodynamic geometry. In a mixed canonical grand canonical ensemble with a fixed electric charge and varying…

高能物理 - 理论 · 物理学 2014-12-15 Pankaj Chaturvedi , Anirban Das , Gautam Sengupta

A closed virial equation-of-state for the low density fluid phase of hard disks is obtained from the known virial coefficients. The equation exhibits 6-figure accuracy for the thermodynamic (MD) pressure up to the reduced number density ~…

统计力学 · 物理学 2010-08-24 Anthony Beris , Leslie V. Woodcock

We study the behavior of systems in which the interaction contains a long-range component that does not dominate the critical behavior. Such a component is exemplified by the van der Waals force between molecules in a simple liquid-vapor…

统计力学 · 物理学 2009-10-31 Daniel Dantchev , Joseph Rudnick