Nontrivial velocity distributions in inelastic gases
نویسندگان
چکیده
منابع مشابه
Nontrivial Velocity Distributions in Inelastic Gases
Granular gases present novel challenges, previously not encountered in fluid dynamics [1]. Specifically, the strong underlying energy dissipation leads to clustering instabilities and strong velocity correlations [2–7]. A series of recent experimental and theoretical studies reveals a rich phenomenology. In particular, velocities are characterized by anomalous statistics, sensitive to the detai...
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The kinetic theory of granular gases is studied for spatially homogeneous systems. At large velocities, the equation governing the velocity distribution becomes linear, and it admits stationary solutions with a power-law tail, f (v) approximately v(-sigma) . This behavior holds in arbitrary dimension for arbitrary collision rates including both hard spheres and Maxwell molecules. Numerical simu...
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Measurements are made of the velocity distributions of He+, Ne+ and Ar' ions drifting in their respective parent gas under the action of a uniform electric field at room temperature (297-300 K). Considerable improvements have been implemented in the present apparatus in comparison with older systems. The drift tube is greatly enlarged and its pressure accurately controlled by a regulating servo...
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We consider the inelastic Maxwell model, which consists of a collection of particles that are characterized by only their velocities and evolving through binary collisions and external driving. At any instant, a particle is equally likely to collide with any of the remaining particles. The system evolves in continuous time with mutual collisions and driving taken to be point processes with rate...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and General
سال: 2002
ISSN: 0305-4470,1361-6447
DOI: 10.1088/0305-4470/35/11/103