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Mostrando ítems 1-10 de 23
Artículo
Breakdown of hydrodynamics in the inelastic Maxwell model of granular gases
(American Physical Society, 2010)
Both the right and left eigenfunctions and eigenvalues of the linearized homogeneous Boltzmann equation for inelastic Maxwell molecules corresponding to the hydrodynamic modes are calculated. Also, some nonhydrodynamic ...
Artículo
Volume fluctuations and compressibility of a vibrated granular gas
(American Physical Society, 2010)
The volume fluctuations in the steady state reached by a vibrated granular gas of hard particles confined by a movable piston on the top are investigated by means of event-driven simulations. Also, a compressibility factor, ...
Artículo
Transport coefficients for dense hard-disk systems
(American Physical Society, 2006)
A study of the transport coefficients of a system of elastic hard disks based on the use of Helfand-Einstein expressions is reported. The self-diffusion, the viscosity, and the heat conductivity are examined with averaging ...
Artículo
Uniform self-diffusion in a granular gas
(American Institute of Physics, 2013)
A granular gas composed of inelastic hard spheres or disks in the homogeneous cooling state is considered. Some of the particles are labeled and their number density exhibits a time-independent linear profile along a given ...
Ponencia
Fluctuations of a piston on top of a fluidized granular gas
(American Institute of Physics, 2009)
A fluidized granular gas in presence of a gravitational field is considered. It is enclosed in a box with a movable piston on the top. Molecular dynamics simulation results show that, if the box is not too wide, the system ...
Artículo
Shearing instability of a dilute granular mixture
(American Physical Society, 2013)
The shearing instability of a dilute granular mixture composed of smooth inelastic hard spheres or disks is investigated. By using the Navier-Stokes hydrodynamic equations, it is shown that the scaled transversal velocity ...
Artículo
Rheological effects in the linear response and spontaneous fluctuations of a sheared granular gas
(American Physical Society, 2012)
The decay of a small homogeneous perturbation in the temperature of a dilute granular gas in the steady uniform shear flow state is investigated. Using kinetic theory based on the inelastic Boltzmann equation, a ...
Artículo
Hydrodynamic character of the nonequipartition of kinetic energy in binary granular gases
(American Physical Society, 2009)
The influence of the heating mechanism on the kinetic energy densities of the components of a vibrated granular mixture is investigated. Collisions of the particles with the vibrating wall are inelastic and characterized ...
Artículo
Homogeneous hydrodynamics of a collisional model of confined granular gases
(American Physical Society, 2014)
The hydrodynamic equation governing the homogeneous time evolution of the temperature in a model of confined granular gas is studied by means of the Enskog equation. The existence of a normal solution of the kinetic equation ...
Artículo
Mesoscopic theory of critical fluctuations in isolated granular gases
(American Physical Review, 2006-05-12)
Fluctuating hydrodynamics is used to describe the total energy fluctuations of a freely evolving gas of inelastic hard spheres near the threshold of the clustering instability. They are shown to be governed only by vorticity ...