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Observation of Chaotic Dynamics in Dilute Sheared Aqueous Solutions of CTAT

Ranjini Bandyopadhyay·Geetha Basappa·A. K. Sood
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Abstract

The nonlinear flow behaviour of a viscoelastic gel formed due to entangled, cylindrical micelles in aqueous solutions of the surfactant 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 behaviour. 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.

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Ranjini Bandyopadhyay, Geetha Basappa, A. K. Sood. 1999-12-29. Observation of Chaotic Dynamics in Dilute Sheared Aqueous Solutions of CTAT. https://doi.org/10.1103/physrevlett.84.2022

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