Banded spatiotemporal chaos in sheared nematogenic fluids

被引：5

作者：

Chakraborty, Debarshini ^{[1
]}

Dasgupta, Chandan ^{[1
]}

Sood, A. K. ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

来源：

PHYSICAL REVIEW E | 2010年 / 82卷 / 06期

关键词：

DYNAMICS;

D O I：

10.1103/PhysRevE.82.065301

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We present the results of a numerical study of a model of the hydrodynamics of a sheared nematogenic fluid, taking into account the effects of order-parameter stresses on the velocity profile but allowing spatial variations only in the gradient direction. When parameter values are such that the stress from orientational distortions is comparable to the bare viscous stress, the system exhibits steady states with the characteristics of shear banding. In addition, nonlinearity in the coupling of extensional flow to orientation leads to the appearance of a new steady state in which the features of both spatiotemporal chaos and shear banding are present.

引用

页数：4

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