The order-disorder transition in colloidal suspensions under shear flow

We study the order-disorder transition in colloidal suspensions under shear flow by performing Brownian dynamics simulations. We characterize the transition in terms of a statistical property of time-dependent maximum value of the structure factor. We find that its power spectrum exhibits the power-...

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Bibliographic Details
Published inarXiv.org
Main Authors Miyama, Masamichi J, Shin-ichi Sasa
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 10.08.2007
Subjects
Colloids
Crystal structure
Order-disorder transformations
Physics - Soft Condensed Matter
Physics - Statistical Mechanics
Power law
Shear flow
Shear rate
Structure factor
Time dependence
Variation
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Summary:We study the order-disorder transition in colloidal suspensions under shear flow by performing Brownian dynamics simulations. We characterize the transition in terms of a statistical property of time-dependent maximum value of the structure factor. We find that its power spectrum exhibits the power-law behaviour only in the ordered phase. The power-law exponent is approximately -2 at frequencies greater than the magnitude of the shear rate, while the power spectrum exhibits the \(1 / f\)-type fluctuations in the lower frequency regime.
ISSN:2331-8422
DOI:10.48550/arxiv.0706.4386