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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 ...
Ponencia
Which reference state for a granular gas heated by the stochastic thermostat?
(AIP Publishing, 2012)
We study the time evolution of the one-particle distribution function of a granular gas heated by the stochastic thermostat. It is found that, for a wide class of homogeneous initial conditions, memory of the initial ...
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
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 ...
Artículo
Breakdown of the fluctuation-dissipation relations in granular gases
(IOP Publishing Ltd., 2008-10)
A numerical molecular dynamics experiment measuring the two-time correlation function of the transversal velocity field in the homogeneous cooling state of a granular gas modeled as an ensemble of inelastic hard particles ...
Artículo
Universal reference state in a driven homogeneous granular gas
(American Physical Society, 2012)
We study the dynamics of a homogeneous granular gas heated by a stochastic thermostat, in the low density limit. It is found that, before reaching the stationary regime, the system quickly “forgets” the initial condition ...
Artículo
Fluctuating Navier-Stokes equations for inelastic hard spheres or disks
(American Physical Society, 2011)
Starting from the fluctuating Boltzmann equation for smooth inelastic hard spheres or disks, closed equations for the fluctuating hydrodynamic fields to Navier-Stokes order are derived. This requires deriving constitutive ...
Artículo
Homogeneous steady state of a confined granular gas
(American Physical Society, 2013)
The nonequilibrium statistical mechanics and kinetic theory for a model of a confined quasi-two-dimensional gas of inelastic hard spheres is presented. The dynamics of the particles includes an effective mechanism to ...
Artículo
Fluctuating hydrodynamics for dilute granular gases
(American Physical Society, 2009)
Starting from the kinetic equations for the fluctuations and correlations of a dilute gas of inelastic hard spheres or disks, a Boltzmann-Langevin equation for the one-particle distribution function of the homogeneous cooling ...