Ghosh, A. ; Badiger, M. V. ; Tapadia, P. S. ; Kumar, V. Ravi ; Kulkarni, B. D. (2001) Characterization of chaotic dynamics-I: dynamical invariants of sheared polymer solutions Chemical Engineering Science, 56 (19). pp. 5635-5642. ISSN 0009-2509
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00092...
Related URL: http://dx.doi.org/10.1016/S0009-2509(01)00159-2
Abstract
Stress measurements as a function of time in aqueous polymer solutions show the presence of sustained dynamic features for identifiable steady shear regions. The analysis of post-transient time-series data, reveals the presence of low-dimensional chaotic dynamics. Interestingly, the results obtained from different types of polymer solutions, viz., thermosensitive polymers and biopolymers, show similar complex dynamical features and suggest that mechanisms responsible are common. The experimental data have been analyzed with a view to characterizing the strange attractor in terms of invariant measures such as the correlation, embedding, Lyapunov dimensions and entropy.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Sheared Polymer Solutions; Chaotic Dynamics; Nonlinear Time-series Analysis; Lyapunov Exponents; Wavelet Transform; Noise Reduction |
| ID Code: | 17385 |
| Deposited On: | 16 Nov 2010 08:26 |
| Last Modified: | 06 Jun 2011 09:16 |
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