Hard discs under steady shear: comparison of Brownian dynamics simulations and mode coupling theory

被引：42

作者：

Henrich, Oliver ^{[2
]}

Weysser, Fabian ^{[1
]}

Cates, Michael E. ^{[2
]}

Fuchs, Matthias ^{[1
]}

机构：

[1] Univ Konstanz, Fachbereich Phys, D-78457 Constance, Germany

[2] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2009年 / 367卷 / 1909期

基金：

英国工程与自然科学研究理事会;

关键词：

rheology; colloids; glasses; COLLOIDAL SUSPENSIONS; FLOW;

D O I：

10.1098/rsta.2009.0191

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Brownian dynamics simulations of bidisperse hard discs moving in two dimensions in a given steady and homogeneous shear flow are presented close to and above the glass transition density. The stationary structure functions and stresses of shear-melted glass are compared quantitatively to parameter-free numerical calculations of monodisperse hard discs using mode coupling theory within the integration through transients framework. Theory qualitatively explains the properties of the yielding glass but quantitatively overestimates the shear-driven stresses and structural anisotropies.

引用

页码：5033 / 5050

页数：18

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