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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
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
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
Shear state of freely evolving granular gases
(American Physical Society, 2008)
Hydrodynamic equations are used to identify the final state reached by a freely evolving granular gas above but close to its shear instability. The theory predicts the formation of a two bands shear state with a steady density ...
Artículo
Hydrodynamic profiles for an impurity in an open vibrated granular gas
(American Physical Society, 2006)
The hydrodynamic state of an impurity immersed in a low density granular gas is analyzed. Explicit expressions for the temperature and density fields of the impurity in terms of the hydrodynamic fields of the gas are ...
Artículo
Steady self-diffusion in classical gases
(IOP Publishing Ltd., 2013-08)
A steady self-diffusion process in a gas of hard spheres at equilibrium is analyzed. The system exhibits a constant gradient of labeled particles. Neither the concentration of these particles nor its gradient are assumed ...
Artículo
Vibrated granular gas confined by a piston
(American Physical Society, 2009)
The steady state of a vibrated granular gas confined by a movable piston on top is discussed. Particular attention is given to the hydrodynamic boundary conditions to be used when solving the inelastic Navier-Stokes ...
Artículo
Cooling rates and energy partition in inhomogeneous fluidized granular mixtures
(American Physical Society, 2011)
The local cooling rates of the components of a vibrated binary granular mixture in a steady state are investigated. The accuracy of the expression obtained by assuming a local homogeneous cooling state distribution of the ...