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dc.contributor.author
Banchio, Adolfo Javier
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dc.contributor.author
Nägele, Gerhard
dc.date.available
2024-08-14T15:35:47Z
dc.date.issued
2008-03
dc.identifier.citation
Banchio, Adolfo Javier; Nägele, Gerhard; Short-time transport properties in dense suspensions: From neutral to charge-stabilized colloidal spheres; American Institute of Physics; Journal of Chemical Physics; 128; 10; 3-2008; 1-20
dc.identifier.issn
0021-9606
dc.identifier.uri
http://hdl.handle.net/11336/242521
dc.description.abstract
We present a detailed study of short-time dynamic properties in concentrated suspensions ofcharge-stabilized and of neutral colloidal spheres. The particles in many of these systems are subjectto significant many-body hydrodynamic interactions. A recently developed accelerated Stokesiandynamics (ASD) simulation method is used to calculate hydrodynamic functions,wave-number-dependent collective diffusion coefficients, self-diffusion and sedimentationcoefficients, and high-frequency limiting viscosities. The dynamic properties are discussed independence on the particle concentration and salt content. Our ASD simulation results are comparedwith existing theoretical predictions, notably those of the renormalized density fluctuation expansionmethod of Beenakker and Mazur [Physica A 126, 349 (1984)], and earlier simulation data on hardspheres. The range of applicability and the accuracy of various theoretical expressions for short-timeproperties are explored through comparison with the simulation data. We analyze, in particular, thevalidity of generalized Stokes?Einstein relations relating short-time diffusion properties to thehigh-frequency limiting viscosity, and we point to the distinctly different behavior of de-ionizedcharge-stabilized systems in comparison to hard spheres.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Institute of Physics
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
COLLOIDAL SUSPENSIONS
dc.subject
SHORT-TIME DYNAMICS
dc.subject
DENSE SUSPENSIONS
dc.subject.classification
Física de los Materiales Condensados
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Short-time transport properties in dense suspensions: From neutral to charge-stabilized colloidal spheres
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-14T14:17:23Z
dc.journal.volume
128
dc.journal.number
10
dc.journal.pagination
1-20
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Banchio, Adolfo Javier. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
dc.description.fil
Fil: Nägele, Gerhard. Institut für Festkörperforschung; Alemania
dc.journal.title
Journal of Chemical Physics
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1063/1.2868773
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