双极悬浮液中链和带的现象学模型

IF 3 2区 工程技术 Q2 MECHANICS
Jeremy I. Kach, Lynn M Walker, Aditya S. Khair
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引用次数: 0

摘要

我们介绍了可极化粒子在外场作用下的双极相互作用现象学模型,其中粒子对相互作用的相对径向和旋转分量可以调整。我们的研究表明,这两个分量的相对强度控制着此类粒子悬浮液的微观结构和动力学。值得注意的是,占主导地位的径向相互作用会导致人字形带状图案的形成,而以前人们认为这种图案只会出现在流体力学相互作用占主导地位的系统中。通过这个现象学模型,我们证明了偶极相互作用可用于获得可极化粒子悬浮液中从链到带的一系列模式,这将极大地影响悬浮液的剪切流变等。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A phenomenological model for chains and bands in dipolar suspensions
We introduce a phenomenological model for the dipolar interaction of polarizable particles under an external field, where the relative radial and rotational components of a particle pair interaction can be tuned. We show that the relative strengths of these two components govern the microstructure and dynamics of a suspension of such particles. Notably, dominant radial interactions give rise to the formation of zigzag band patterns, which were previously only thought to occur in systems where hydrodynamic interactions dominate. Through this phenomenological model, we show that dipolar interactions can be used to access an array of patterns in suspensions of polarizable particles, from chains to bands, which would dramatically affect suspension shear rheology, for instance.
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来源期刊
Journal of Rheology
Journal of Rheology 物理-力学
CiteScore
6.60
自引率
12.10%
发文量
100
审稿时长
1 months
期刊介绍: The Journal of Rheology, formerly the Transactions of The Society of Rheology, is published six times per year by The Society of Rheology, a member society of the American Institute of Physics, through AIP Publishing. It provides in-depth interdisciplinary coverage of theoretical and experimental issues drawn from industry and academia. The Journal of Rheology is published for professionals and students in chemistry, physics, engineering, material science, and mathematics.
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