منابع مشابه
Hydrodynamic theory for granular gases
A granular gas subjected to a permanent injection of energy is described by means of hydrodynamic equations derived from a moment expansion method. The method uses as reference function not a Maxwellian distribution f(M) but a distribution f(0)=Phif(M), such that Phi adds a fourth cumulant kappa to the velocity distribution. The formalism is applied to a stationary conductive case showing that ...
متن کاملHydrodynamic Burnett equations for inelastic Maxwell models of granular gases.
The hydrodynamic Burnett equations and the associated transport coefficients are exactly evaluated for generalized inelastic Maxwell models. In those models, the one-particle distribution function obeys the inelastic Boltzmann equation, with a velocity-independent collision rate proportional to the γ power of the temperature. The pressure tensor and the heat flux are obtained to second order in...
متن کاملElementary preamble to a theory of granular gases
Granular materials partake almost dramatically at times of the properties of solids and, under different circumstances, of some properties of gases. Some scientists have suggested that they represent a new state of matter, to be treated per se; because of their ambiguity the search of an overall continuum model for these media is quite intriguing. Even if one confines inquiry to fast flows of s...
متن کاملBifurcation diagram for compartmentalized granular gases.
The bifurcation diagram for a vibrofluidized granular gas in N connected compartments is constructed and discussed. At vigorous driving, the uniform distribution (in which the gas is equi-partitioned over the compartments) is stable. But when the driving intensity is decreased this uniform distribution becomes unstable and gives way to a clustered state. For the simplest case, N=2, this transit...
متن کاملBlow Up Analysis for Anomalous Granular Gases
We investigate in this article the long-time behaviour of the solutions to the energydependant, spatially-homogeneous, inelastic Boltzmann equation for hard spheres. This model describes a diluted gas composed of hard spheres under statistical description, that dissipates energy during collisions. We assume that the gas is “anomalous”, in the sense that energy dissipation increases when tempera...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2000
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.62.2521