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相关论文: Integral equations for simple fluids in a general …

200 篇论文

We present an integral equation approach to solving the Cahn-Hilliard equation equipped with boundary conditions that model solid surfaces with prescribed Young's angles. The discretization of the system in time using convex splitting leads…

数值分析 · 数学 2020-08-26 Xiaoyu Wei , Shidong Jiang , Andreas Kloeckner , Xiao-Ping Wang

A general method of solving the drift kinetic equation is developed for an axisymmetric magnetic field. Expanding a distribution function in general moments a set of ordinary differential equations are obtained. Successively expanding the…

等离子体物理 · 物理学 2023-04-11 Jeong-Young Ji , Eric D. Held , J. Andrew Spencer , Yong-Su Na

For homogeneous and isotropic linearly elastic solids and for incompressible fluids under low-Reynolds-number conditions the fundamental solutions of the associated continuum equations were derived a long time ago for bulk systems. That is,…

软凝聚态物质 · 物理学 2026-01-21 Abdallah Daddi-Moussa-Ider , Lukas Fischer , Marc Pradas , Andreas M. Menzel

We consider a simple fluid confined between two parallel walls (substrates), separated by a distance L. The walls exert competing surface fields so that one wall is attractive and may be completely wet by liquid (it is solvophilic) while…

软凝聚态物质 · 物理学 2014-09-01 Maria C. Stewart , Robert Evans

The linear response of an isolated, homogeneous granular fluid to small spatial perturbations is studied by methods of non-equilibrium statistical mechanics. The long wavelength linear hydrodynamic equations are obtained, with formally…

软凝聚态物质 · 物理学 2009-11-11 James Dufty , Aparna Baskaran , J. Javier Brey

In this paper, we present a formalism to generate a family of interior solutions to the Einstein-Maxwell system of equations for a spherically symmetric relativistic charged fluid sphere matched to the exterior Reissner-Nordstr\"om…

综合物理 · 物理学 2018-05-09 K. Komathiraj , Ranjan Sharma

We present an analysis and discuss consequences of the strong correlations of the configurational parts of pressure and energy in their equilibrium fluctuations at fixed volume reported for simulations of several liquids in the companion…

软凝聚态物质 · 物理学 2009-11-13 Nicholas P. Bailey , Ulf R. Pedersen , Nicoletta Gnan , Thomas B. Schrøder , Jeppe C. Dyre

We look at a homogeneous incompressible fluid with a time and space variable rheology of Bingham type, which is governed by a coupling equation. Such a system is a simplified model for a gas-particle mixture that flows under the influence…

偏微分方程分析 · 数学 2016-10-17 Laurent Chupin , Jordane Mathé

We propose a density functional to find the ground state energy and density of interacting particles, where both the density and the pair density can adjust in the presence of an inhomogeneous potential. As a proof of principle we formulate…

强关联电子 · 物理学 2015-06-11 J. Lorenzana , Z. -J. Ying , V. Brosco

A monte carlo density functional theory is developed for chain molecules which both intra and intermolecularly associate. The approach can be applied over a range of chain lengths. The theory is validated for the case of an associating…

软凝聚态物质 · 物理学 2013-08-30 B. D. Marshall , A. J. Garcia-Cuellar , W. G. Chapman

We propose a new type of effective densities via the potential distribution theorem. These densities are for the sake of enabling the mapping of the free energy of a uniform fluid onto that of a nonuniform fluid. The potential distribution…

软凝聚态物质 · 物理学 2012-02-21 L. L. Lee , G. Pellicane

We study effects of fluctuations on the mesoscopic length-scale on systems with mesoscopic inhomogeneities. Equations for the correlation function and for the average volume fraction are derived in the self-consistent Gaussian…

软凝聚态物质 · 物理学 2016-05-25 A. Ciach , W. T. Gozdz

We use grand canonical transition-matrix Monte Carlo and discontinuous molecular dynamics simulations to generate precise thermodynamic and kinetic data for the equilibrium hard-sphere fluid confined between smooth hard walls. These…

软凝聚态物质 · 物理学 2009-11-06 Jeetain Mittal , Jeffrey R. Errington , Thomas M. Truskett

The coupled system of the spherically symmetric Einstein--Maxwell differential equations is solved under two different source conditions: non-zero electric charge and pressure anisotropy. Expressions for the metric functions, and pressures…

广义相对论与量子宇宙学 · 物理学 2016-03-11 Ambrish M. Raghoonundun , David W. Hobill

In this work we have obtained Maxwell-type equations for a compressible fluid which sources are functions of velocity and vorticity. A correlation function and the dispersion relation were analyzed as function of the Reynolds number. A…

流体动力学 · 物理学 2014-12-05 Everton M. C. Abreu , Jorge Ananias Neto , Albert C. R. Mendes

The response of an isolated granular fluid to small perturbations of the hydrodynamic fields is considered. The corresponding linear response functions are identified in terms of a formal solution to the Liouville equation including the…

统计力学 · 物理学 2015-05-14 James W. Dufty

A general class of solutions of Einstein's equation for a slowly rotating fluid source, with supporting internal pressure, is matched using Lichnerowicz junction conditions, to the Kerr metric up to and including first order terms in…

广义相对论与量子宇宙学 · 物理学 2015-06-25 R. J. Wiltshire

An ideal compressible fluid is considered, with an equilibrium density being a given function of coordinates due to presence of some static external forces. The slow flows in such system, which do not disturb the density, are investigated…

流体动力学 · 物理学 2009-11-06 V. P. Ruban

An internal energy function of the mass density, the volumetric entropy and their gradients at n-order generates the representation of multi-gradient fluids. Thanks to Hamilton's principle, we obtain a thermodynamical form of the equation…

流体动力学 · 物理学 2018-03-19 Henri Gouin

We derive an exact equation for density changes induced by a general external field that corrects the hydrostatic approximation where the local value of the field is adsorbed into a modified chemical potential. Using linear response theory…

统计力学 · 物理学 2009-10-31 Kirill Katsov , John D. Weeks