Local fluctuations in a fluidized granular medium

K. Helal, T. Biben and J.P. Hansen

Physica A: Statistical Mechanics and its Applications, 1997, vol. 240, issue 1, 361-373

Abstract: Molecular dynamics simulations have been carried out on a two-dimensional model granular material made up of inelastically colliding discs subjected to gravity. The granular system is fluidized by a constant energy input from a vibrating base, and a stationary non-equilibrium state is achieved. Density and granular temperature profiles are determined; while the former goes through a maximum at intermediate altitudes, the latter exhibits a minimum at a higher altitude, beyond which the granular temperature is found to increase. Local density fluctuations are characterized by the time-displaced density autocorrelation function. Longitudinal compression (sound) waves propagating in the horizontal direction are found to be strongly damped, while they are overdamped in the vertical direction at the longest accessible wavelength.

Date: 1997
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437197001593
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:240:y:1997:i:1:p:361-373

DOI: 10.1016/S0378-4371(97)00159-3

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().