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arXiv · 2311.15139

Diffusion in multicomponent granular mixtures

Anna S. Bodrova
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Abstract

We investigate diffusion in a polydisperse granular media. We derive mean-squared displacement of granular particles in a polydisperse granular gas in a homogeneous cooling state, containing arbitrary amount of species of different sizes and masses. We investigate both models of constant and time-dependent restitution coefficients and obtain a universal law for the size-dependence of MSD for steep size distributions.

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Anna S. Bodrova. 2023-11-25. Diffusion in multicomponent granular mixtures. https://doi.org/10.1103/physreve.109.024903

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