Banded spatiotemporal chaos in sheared nematogenic fluids

Chakraborty, Debarshini ; Dasgupta, Chandan ; Sood, A. K. (2010) Banded spatiotemporal chaos in sheared nematogenic fluids Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 82 (6). 065301_1-065301_4. ISSN 1539-3755

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Official URL: http://pre.aps.org/abstract/PRE/v82/i6/e065301

Related URL: http://dx.doi.org/10.1103/PhysRevE.82.065301

Abstract

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.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:50232
Deposited On:22 Jul 2011 14:03
Last Modified:18 May 2016 04:36

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