Phase separation and coarsening in electrostatically driven granular media

Phase separation and coarsening in electrostatically driven granular media

A continuum model for the phase separation and coarsening in electrostatically driven granular media is formulated in terms of a Ginzburg-Landau equation subject to conservation of the total number of grains. In the regime of well-developed clusters, the continuum model is used to derive "sharp...

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Veröffentlicht in:Physical review letters 2002-05, Vol.88 (20), p.204301-204301, Article 204301
Hauptverfasser: Aranson, I S, Meerson, B, Sasorov, P V, Vinokur, V M
Format: Artikel
Sprache:eng
Schlagworte:
EQUATIONS
GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
GINZBURG-LANDAU THEORY
GRANULAR MATERIALS
PHYSICS
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Zusammenfassung:A continuum model for the phase separation and coarsening in electrostatically driven granular media is formulated in terms of a Ginzburg-Landau equation subject to conservation of the total number of grains. In the regime of well-developed clusters, the continuum model is used to derive "sharp-interface" equations that govern the dynamics of the interphase boundary. The model captures the essential physics of this system.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.88.204301