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Energy and number of collisions fluctuations in inelastic gases

R. Lambiotte·M. Ausloos·J. M. Salazar
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Abstract

We study by numerical simulations the two-dimensional Inelastic Maxwell Model (IMM), and show how the inelasticity of collisions together with the fluctuations of the number of collisions undergone by a particle lead to energy fluctuations that decay like a power-law. These fluctuations are associated to a shrinking of the available phase space. We find the asymptotic scaling of these energy fluctuations and show how they affect the tail of the velocity distribution during long time intervals.

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R. Lambiotte, M. Ausloos, J. M. Salazar. 2005-10-24. Energy and number of collisions fluctuations in inelastic gases. https://doi.org/10.1016/j.physa.2006.08.032

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