Polydispersity and structure: a qualitative comparison between simulations and granular systems data
R. Sánchez, I. C. Romero-Sánchez, S. Santos-Toledano and A. Huerta
Departamento de Física, Facultad de Física e Inteligencia Artificial, Universidad Veracruzana, Circuito Gonzalo Aguirre Beltrán s/n, Zona Universitaria, Xalapa 91000, Veracruz, Mexico.
Received 22 August 2013. ]]> Accepted 7 January 2014.
Abstract
Various quasi-2D systems are examined experimentally, particularly via the radial distribution function, in an inexpensive and convenient driven granular system. Results regarding the effects of polydispersity and granular collapse are presented. It is found that, even using a simple size distribution, Monte Carlo equilibrium simulations can successfully reproduce the experimental results with only minor corrections arising from observed granular collapse, and that polydispersity of ~ 7 % suppresses crystallization.
Keywords: Quasi-2D; granular collapse; jamming; driven granular media.
PACS: 68.18.-g; 68.47.Pe; 81.05.Rm; 64.70.P-
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]]> Acknowledgements
The authors acknowledge support from Red Temática de la Materia Condensada Blanda (CONACYT) and valuable discussions with A. Trokhymchuk. AH acknowledges funding from CONACYT (project number 152431), and RS acknowledges separate support from CONACYT (Retención 174462).
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