Banded spatiotemporal chaos in sheared nematogenic fluids

Chakraborty, Debarshini and Dasgupta, Chandan and Sood, AK (2010) Banded spatiotemporal chaos in sheared nematogenic fluids. In: Physical Review E - Statistical, Nonlinear and Soft Matter Physics, 82 (6, Par).

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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:	Journal Article
Publication:	Physical Review E - Statistical, Nonlinear and Soft Matter Physics
Publisher:	The American Physical Society
Additional Information:	Copyright of this article belongs to The American Physical Society.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	03 Mar 2011 12:29
Last Modified:	03 Mar 2011 12:29
URI:	http://eprints.iisc.ac.in/id/eprint/35792

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