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kGamma distributions in granular packs , G. W Delaney

Summary: kGamma distributions in granular packs
T. Aste,
, G. W Delaney
and T. Di Matteo

School of Physical Sciences, University of Kent, Canterbury, Kent, CT2 7NH, UK.

Department of Applied Mathematics, Research School of Physical Sciences and Engineering, The Australian
National University, 0200 Canberra, ACT, Australia.

King's College Department of Mathematics, Strand London WC2R 2LS, UK.

CSIRO Mathematical and Information Sciences, Private Bag 33, Clayton South, Vic, 3168, Australia.
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.
Keywords: k-Gamma distribution; packing fraction; Voronoi Volume; local density fluctuations
PACS: 81.05.Rm,45.70.Cc,45.70.Vn,45.70.Mg
The description and understanding of amorphous structures is very challenging because the lack of any translational


Source: Aste, Tomaso - Department of Applied Mathematics, Australian National University


Collections: Physics