Observation of Chaotic Dynamics in Dilute Sheared Aqueous Solutions of CTAT

Bandyopadhyay, Ranjini and Basappa, Geetha and Sood, AK (2000) Observation of Chaotic Dynamics in Dilute Sheared Aqueous Solutions of CTAT. In: Physical Review Letters, 84 (9). 2022 -2025.

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Abstract

The nonlinear flow behavior of a viscoelastic gel formed due to entangled, cylindrical micelles in aqueous solutions of the surfactant cetyl trimethylammonium tosilate (CTAT) has been studied. On subjecting the system to a step shear rate lying above a certain value, the shear and normal stresses show interesting time dependent behavior. The analysis of the measured time series shows the existence of a finite correlation dimension and a positive Lyapunov exponent, unambiguously implying that the dynamics can be described by that of a dynamical system with a strange attractor whose dimension increases with the increase in shear rate.

Item Type:	Journal Article
Publication:	Physical Review Letters
Publisher:	American Physical Society (APS)
Additional Information:	Copyright for this article belongs to American Physical Society (APS).
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	10 Dec 2004
Last Modified:	19 Sep 2010 04:12
URI:	http://eprints.iisc.ac.in/id/eprint/67

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