Title:
Stationary state volume fluctuations in a granular medium

dc.contributor.author Schroeter, Matthias en_US
dc.contributor.author Goldman, Daniel I. en_US
dc.contributor.author Swinney, Harry L. en_US
dc.contributor.corporatename Georgia Institute of Technology. School of Physics en_US
dc.contributor.corporatename University of Texas at Austin. Center for Nonlinear Dynamics en_US
dc.contributor.corporatename University of Texas at Austin. Dept. of Physics en_US
dc.date.accessioned 2012-08-21T19:48:59Z
dc.date.available 2012-08-21T19:48:59Z
dc.date.issued 2005-03-30
dc.description © 2005 The American Physical Society en_US
dc.description The electronic version of this article is the complete one and can be found online at: http://link.aps.org/doi/10.1103/PhysRevE.71.030301 en_US
dc.description DOI: 10.1103/PhysRevE.71.030301 en_US
dc.description.abstract A statistical description of static granular material requires ergodic sampling of the phase space spanned by the different configurations of the particles. We periodically fluidize a column of glass beads and find that the sequence of volume fractions ϕ of postfluidized states is history independent and Gaussian distributed about a stationary state. The standard deviation of ϕ exhibits, as a function of ϕ, a minimum corresponding to a maximum in the number of statistically independent regions. Measurements of the fluctuations enable us to determine the compactivity X, a temperaturelike state variable introduced in the statistical theory of Edwards and Oakeshott [Physica A 157, 1080 (1989)]. en_US
dc.identifier.citation Matthias Schroeter, Daniel I. Goldman and Harry L. Swinney, "Stationary state volume fluctuations in a granular medium," Physical Review E Rapid Communications, 71, 030301 (2005) en_US
dc.identifier.issn 1539-3755
dc.identifier.uri http://hdl.handle.net/1853/44560
dc.language.iso en_US en_US
dc.publisher Georgia Institute of Technology en_US
dc.publisher.original American Physical Society en_US
dc.subject Granular systems en_US
dc.subject Fluctuation phenomena en_US
dc.subject Random processes en_US
dc.subject Noise en_US
dc.subject Brownian motion en_US
dc.subject Equations of state of specific substances en_US
dc.subject Particle-laden flows en_US
dc.title Stationary state volume fluctuations in a granular medium en_US
dc.type Text
dc.type.genre Article
dspace.entity.type Publication
local.contributor.author Goldman, Daniel I.
local.contributor.corporatename College of Sciences
local.contributor.corporatename School of Physics
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relation.isOrgUnitOfPublication 2ba39017-11f1-40f4-9bc5-66f17b8f1539
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