kGamma distributions in granular packs
T. Aste, G. W Delaney, T. Di Matteo
TL;DR
This paper confirms and extends the finding that local volume fluctuations in granular packings follow a shifted and rescaled Gamma distribution, supported by new experimental and simulation data.
Contribution
It provides additional experimental and simulation evidence supporting the kGamma distribution model for granular packings.
Findings
Local volume fluctuations follow the kGamma distribution.
The kGamma distribution accurately models granular packings.
Extended data supports the universality of the distribution.
Abstract
It has been recently pointed out that local volume fluctuations in granular packings follow remarkably well a shifted and rescaled Gamma distribution named the kGamma distribution [T. Aste, T. Di Matteo, Phys. Rev. E 77 (2008) 021309]. In this paper we confirm, extend and discuss this finding by supporting it with additional experimental and simulation data.
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