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http://hdl.handle.net/2445/18820
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DC Field | Value | Language |
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dc.contributor.author | Pagonabarraga Mora, Ignacio | cat |
dc.contributor.author | Trizac, Emmanuel | cat |
dc.contributor.author | Van Noije, T. P. C. | cat |
dc.contributor.author | Ernst, M. H. | cat |
dc.date.accessioned | 2011-07-07T12:53:25Z | - |
dc.date.available | 2011-07-07T12:53:25Z | - |
dc.date.issued | 2001 | - |
dc.identifier.issn | 1063-651X | - |
dc.identifier.uri | http://hdl.handle.net/2445/18820 | - |
dc.description.abstract | We present a molecular dynamics and kinetic theory study of granular material, modeled by inelastic hard disks, fluidized by a random driving force. The focus is on collisional averages and short distance correlations in the non-equilibrium steady state, in order to analyze in a quantitative manner the breakdown of molecular chaos, i.e. factorization of the two-particle distribution function, $f^{(2)}(x_1,x_2) \simeq \chi f^(1)(x_1) f^{(1)}(x_2)$ in a product of single particle ones, where $x_i = \{{\bf r}_i, {\bf v}_i \}$ with $i=1,2$ and $\chi$ represents the position correlation. We have found that molecular chaos is only violated in a small region of the two-particle phase space $\{x_1,x_2\}$, where there is a predominance of grazing collisions. The size of this singular region grows with increasing inelasticity. The existence of particle- and noise-induced recollisions magnifies the departure from mean field behavior. The implications of this breakdown in several physical quantities are explored. | - |
dc.format.extent | 19 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | eng |
dc.publisher | The American Physical Society | eng |
dc.relation.isformatof | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.65.011303 | cat |
dc.relation.ispartof | Physical Review E, 2001, vol. 65, núm. 1, p. 011303-1-011303-19 | - |
dc.relation.uri | http://doi.org/10.1103/PhysRevE.65.011303 | - |
dc.rights | (c) American Physical Society, 2001 | - |
dc.source | Articles publicats en revistes (Física de la Matèria Condensada) | - |
dc.subject.classification | Materials granulars | cat |
dc.subject.classification | Teoria cinètica dels gasos | cat |
dc.subject.classification | Termodinàmica del desequilibri | cat |
dc.subject.other | Granular materials | eng |
dc.subject.other | Kinetic theory of gases | eng |
dc.subject.other | Nonequilibrium thermodynamics | eng |
dc.title | Randomly driven granular fluids: collisional statistics and short scale structure | eng |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 507898 | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
Files in This Item:
File | Description | Size | Format | |
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507898.pdf | 715.69 kB | Adobe PDF | View/Open |
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