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相关论文: On the radial distribution function of a hard-sphe…

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We propose an improved effective-medium theory to obtain the concentration dependence of the viscosity of particle suspensions at arbitrary volume fractions. Our methodology can be applied, in principle, to any particle shape as long as the…

软凝聚态物质 · 物理学 2010-06-01 I. Santamaria-Holek , Carlos I. Mendoza

We study the quantitative pointwise behavior of solutions to the Boltzmann equation for hard potentials and Maxwellian molecules, which generalize the hard sphere case introduced by Liu-Yu in 2004 (Comm. Pure Appl. Math. 57:1543-1608,…

偏微分方程分析 · 数学 2024-11-19 Yu-Chu Lin , Haitao Wang , Kung-Chien Wu

We investigate the problem of density estimation on the unit circle and the unit sphere from a computational perspective. Our primary goal is to develop new density estimators that are both rate-optimal and computationally efficient for…

统计理论 · 数学 2026-05-08 Athanasios G. Georgiadis , Andrew P. Percival

We present molecular dynamics simulations of pseudo hard sphere fluid (generalized WCA potential with exponents (50, 49) proposed by Jover et al. J. Chem. Phys 137, (2012)) using GROMACS package. The equation of state and radial…

软凝聚态物质 · 物理学 2020-06-16 Faezeh Pousaneh , Astrid S. de Wijn

We discuss structural and thermodynamical properties of Baxter's adhesive hard sphere model within a class of closures which includes the Percus-Yevick (PY) one. The common feature of all these closures is to have a direct correlation…

统计力学 · 物理学 2009-11-10 Domenico Gazzillo , Achille Giacometti

Phase separation and criticality are analyzed in $z$:1 charge-asymmetric ionic fluids of equisized hard spheres by generalizing the Debye-H\"{u}ckel approach combined with ionic association, cluster solvation by charged ions, and hard-core…

统计力学 · 物理学 2009-11-10 Jean-Noel Aqua , Shubho Banerjee , Michael E. Fisher

Simulations of over $10^3$ hydrodynamically coupled solid spheres are performed to investigate collective motion of linear trains and regular square arrays of particles suspended in a fluid bounded by two parallel walls. Our novel…

软凝聚态物质 · 物理学 2008-04-29 M. Baron , J. Blawzdziewicz , E. Wajnryb

A versatile new approach for calculating the depletion potential in a hard sphere mixture is presented. This is valid for any number of components and for arbitrary densities. We describe two different routes to the depletion potential for…

软凝聚态物质 · 物理学 2009-10-31 B. Götzelmann , R. Roth , S. Dietrich , M. Dijkstra , R. Evans

Recent simulation studies have drawn attention to the shoulder which forms in the second peak of the radial distribution function of hard-spheres at densities close to freezing and which is associated with local crystalline ordering in the…

软凝聚态物质 · 物理学 2009-11-13 J. M. Brader

Pendular liquid bridges with concave meridians between two equal rigid spheres are mathematically studied emphasizing some less analyzed facts in the literature. Discrepancies from the numerical solution of the Young-Laplace equation are…

流体动力学 · 物理学 2025-04-29 James Q Feng

For a fluid of convex hard particles, characterized by a length scale $\sigma_\text{min}$ and an anisotropy parameter $\epsilon$, we develop a formalism allowing one to relate thermodynamic quantities to the body's shape. In a first step…

统计力学 · 物理学 2025-06-17 Thomas Franosch , Cristiano De Michele , Rolf Schilling

The Partition function of two Hard Spheres in a Hard Wall Pore is studied appealing to a graph representation. The exact evaluation of the canonical partition function, and the one-body distribution function, in three different shaped pores…

统计力学 · 物理学 2015-05-18 Ignacio Urrutia

An analytical expression for square-well fluid direct correlation function (DCF) obtained recently by Tang (Y.Tang, J. Chem. Phys. 127, 164504 (2007)) in the first-order mean spherical approximation is extended for wider well widths…

统计力学 · 物理学 2009-01-27 S. P. Hlushak , A. Trokhymchuk , S. Sokolowski

The velocity distribution of dark matter near the Earth is important for an accurate analysis of the signals in terrestrial detectors. This distribution is typically extracted from numerical simulations. Here we address the possibility of…

星系天体物理 · 物理学 2017-02-08 Andreas Eilersen , Steen H. Hansen , Xingyu Zhang

Radiation efficiencies of modal current densities distributed on a spherical shell are evaluated in terms of dissipation factor. The presented approach is rigorous, yet simple and straightforward, leading to closed-form expressions. The…

经典物理 · 物理学 2018-09-12 Vit Losenicky , Lukas Jelinek , Miloslav Capek , Mats Gustafsson

This article presents a comprehensive mathematical framework for the study of regularity, bifurcations, and turbulence in fluid dynamics, leveraging the power of Sobolev and Besov function spaces. We delve into the detailed definitions,…

偏微分方程分析 · 数学 2024-11-22 Rômulo Damasclin Chaves dos Santos

We present the general properties of dynamic dissipative fluid distribution endowed with hyperbolical symmetry. All the equations required for its analysis are exhibited and used to contrast the behavior of the system with the spherically…

广义相对论与量子宇宙学 · 物理学 2022-10-05 L. Herrera

In this paper a method of obtaining smooth analytical estimates of probability densities, radial distribution functions and potentials of mean force from sampled data in a statistically controlled fashion is presented. The approach is…

统计力学 · 物理学 2011-02-08 Ramses van Zon , Jeremy Schofield

We study whether fine discretization (i.e., terracing) of continuous pair interactions, when used in combination with first-order mean-spherical approximation theory, can lead to a simple and general analytical strategy for predicting the…

软凝聚态物质 · 物理学 2013-10-29 Kyle B. Hollingshead , Avni Jain , Thomas M. Truskett

The present work provides a critical assessment of numerical solutions of the space-fractional diffusion-advection equation, which is of high significance for applications in various natural sciences. In view of the fact that, in contrast…

统计力学 · 物理学 2014-10-27 Robin Stern , Frederic Effenberger , Horst Fichtner , Tobias Schaefer