Regensburg 2010 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 30: Posters II

DY 30.52: Poster

Donnerstag, 25. März 2010, 16:00–18:00, Poster C

Volume correlations in disk packings — •SongChuan Zhao, Stephan Herminghaus, and Matthias Schröter — Max-Planck-Institut für Dynamik und Selbstorganisation, Göttingen,Germany

Particles in packings influence their nearest neighbors e.g by force chains.[1] An open question is how far reaching these interactions are. Here we present an experiment of bi-disperse disks driven by periodical air pulse. Images of packings are taken by a CCD camera. Then we compute the distribution of Voronoi volume and probe for a length scale using the Central Limit Theorem.[2]

[1] T.S. Majmudar, and R.P. Behringer, Nature (2005) 435 1079

[2] F. Lechenault, F. da Cruz, O. Dauchot, and E. Bertin, J. Stat. Mech. (2006) P07009