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相关论文: Hydrodynamics for inelastic Maxwell model

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The Boltzmann equation for inelastic Maxwell models is used to analyze nonlinear transport in a granular binary mixture in the steady simple shear flow. Two different transport processes are studied. First, the rheological properties (shear…

统计力学 · 物理学 2016-08-31 Vicente Garzo

A recent model for monodisperse granular suspensions is used to analyze transport properties in spatially inhomogeneous states close to the simple (or uniform) shear flow. The kinetic equation is based on the inelastic Boltzmann (for low…

统计力学 · 物理学 2017-06-30 Vicente Garzó

The transport coefficients of a granular fluid driven by a stochastic bath with friction are obtained by solving the inelastic Enskog kinetic equation from the Chapman-Enskog method. The heat and momentum fluxes as well as the cooling rate…

统计力学 · 物理学 2017-01-05 V. Garzó , M. G. Chamorro , F. Vega Reyes

The hydrodynamics for a gas of hard-spheres which sometimes experience inelastic collisions resulting in the loss of a fixed, velocity-independent, amount of energy $\Delta $ is investigated with the goal of understanding the coupling…

软凝聚态物质 · 物理学 2007-05-23 James F. Lutsko

The Navier-Stokes transport coefficients of a granular gas are obtained from the Chapman-Enskog solution to the Boltzmann equation. The granular gas is heated by the action of an external driving force (thermostat) which does work to…

统计力学 · 物理学 2009-11-07 V. Garzo , J. M. Montanero

A formal derivation of linear hydrodynamics for a granular fluid is given. The linear response to small spatial perturbations of the homogeneous reference state is studied in detail using methods of non-equilibrium statistical mechanics. A…

统计力学 · 物理学 2007-05-23 James W. Dufty , Aparna Baskaran , J. Javier Brey

We present the perturbative solution of the multicomponent Boltzmann kinetic equation based on the set of observables including the hydrodynamic velocity and temperature for each component. The solution is obtained by modifying the formal…

统计力学 · 物理学 2008-01-23 S. V. Savenko , E. A. J. F. Peters , P. J. A. M. Kerkhof

The velocity distribution of inelastic granular gas is examined numerically on two dimensional hard disk system in nearly elastic regime using molecular dynamical simulations. The system is prepared initially in the equilibrium state with…

统计力学 · 物理学 2009-11-07 Hiizu Nakanishi

The Navier-Stokes transport coefficients for binary mixtures of smooth inelastic hard disks or spheres under gravity are determined from the Boltzmann kinetic theory by application of the Chapman-Enskog method for states near the local…

统计力学 · 物理学 2009-11-11 Vicente Garzo , Jose Maria Montanero

We obtain the first rigorous derivation of an incompressible Navier-Stokes-Fourier system with self-consistent and time-dependent forcing terms from the inelastic hard-spheres Boltzmann equation associated to the relevant case of…

偏微分方程分析 · 数学 2025-11-27 R. Alonso , B. Lods , I. Tristani

Systems of hydrodynamic type equations derived from the Navier-Stokes equations and the boundary layer equations are considered. A transformation of the Crocco type reducing the equation order for the longitudinal velocity component is…

流体动力学 · 物理学 2009-10-08 A. D. Polyanin , S. N. Aristov

Recently, an Enskog-type kinetic theory for Vicsek-type models for self-propelled particles has been proposed [T. Ihle, Phys. Rev. E 83, 030901 (2011)]. This theory is based on an exact equation for a Markov chain in phase space and is not…

统计力学 · 物理学 2015-07-22 Thomas Ihle

Conditions for the stability under linear perturbations around the homogeneous cooling state are studied for dilute granular gases of inelastic and rough hard disks or spheres with constant coefficients of normal ($\alpha$) and tangential…

软凝聚态物质 · 物理学 2021-09-16 Alberto Megías , Andrés Santos

A linear stability analysis of the hydrodynamic equations with respect to the homogeneous cooling state is carried out to identify the conditions for stability as functions of the wave vector, the dissipation, and the density. In contrast…

统计力学 · 物理学 2009-11-11 Vicente Garzo

Small perturbations of the homogeneous cooling state (HCS) for a low density granular gas are described by means of the linearized Boltzmann equation. The spectrum of the generator for this dynamics is shown to contain points corresponding…

统计力学 · 物理学 2009-11-11 J. Javier Brey , J. W. Dufty

The revised Enskog approximation for a fluid of hard spheres which lose energy upon collision is discussed for the case that the energy is lost from the normal component of the velocity at collision but is otherwise arbitrary. Granular…

软凝聚态物质 · 物理学 2007-05-23 James F. Lutsko

We consider the velocity fluctuations of a system of particles described by the Inelastic Maxwell Model. The present work extends the methods, previously employed to obtain the one-particle velocity distribution function, to the study of…

统计力学 · 物理学 2009-11-13 G. Costantini , U. Marini Bettolo Marconi , A. Puglisi

Continuum-based theories, such as Navier-Stokes equations, have been considered inappropriate for flows under nonequilibrium conditions. In part, it is due to the lack of rotational degrees of freedom in the Maxwell-Boltzmann distribution.…

流体动力学 · 物理学 2026-03-10 Mohamed M. Ahmed , Mohamad I. Cheikh , James Chen

Hydrodynamic equations for granular gases driven by the Fokker-Planck operator are derived. Transport coefficients appeared in Navier-Stokes order change from the values of a free cooling state to those of a steady state.

统计力学 · 物理学 2009-11-10 Hisao Hayakawa

The Navier--Stokes order hydrodynamic equations for a low-density driven granular mixture obtained previously [Khalil and Garz\'o, Phys. Rev. E \textbf{88}, 052201 (2013)] from the Chapman--Enskog solution to the Boltzmann equation are…

统计力学 · 物理学 2018-02-08 Nagi Khalil , Vicente Garzó