Velocity fluctuations in electrostatically driven granular media

I. S. Aranson, J. S. Olafsen

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

We study experimentally the particle velocity fluctuations in an electrostatically driven dilute granular gas. The velocity distributions have strong deviations from a Maxwellian form over a wide range of parameters. We have found that the tails of the distribution functions are consistent with a stretched exponential law with typical exponents of the order [formula presented] Molecular dynamic simulations shows qualitative agreement with experimental data. Our results suggest that this non-Gaussian behavior is typical of most inelastic gases with both short- and long-range interactions.

Original languageEnglish (US)
Number of pages1
JournalPhysical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume66
Issue number6
DOIs
StatePublished - Dec 10 2002

Fingerprint

Granular Media
Fluctuations
Granular Gases
Long-range Interactions
Velocity Distribution
gases
Range of data
Molecular Dynamics Simulation
Tail
Distribution Function
Deviation
velocity distribution
distribution functions
Exponent
Experimental Data
exponents
molecular dynamics
deviation
simulation
interactions

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)

Cite this

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abstract = "We study experimentally the particle velocity fluctuations in an electrostatically driven dilute granular gas. The velocity distributions have strong deviations from a Maxwellian form over a wide range of parameters. We have found that the tails of the distribution functions are consistent with a stretched exponential law with typical exponents of the order [formula presented] Molecular dynamic simulations shows qualitative agreement with experimental data. Our results suggest that this non-Gaussian behavior is typical of most inelastic gases with both short- and long-range interactions.",
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