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http://hdl.handle.net/2289/4658Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Bandyopadhyay, Ranjini | - |
| dc.contributor.author | Sood, A.K. | - |
| dc.date.accessioned | 2012-06-09T09:51:18Z | - |
| dc.date.available | 2012-06-09T09:51:18Z | - |
| dc.date.issued | 2001 | - |
| dc.identifier.citation | Europhysics Letters,2001, Vol.56, p447–453 | en |
| dc.identifier.issn | 0295-5075 | - |
| dc.identifier.issn | 1286-4854 (Online) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/4658 | - |
| dc.description | Restricted Access. | en |
| dc.description.abstract | We report the observation of dynamical behaviour in dilute, aqueous solutions of a surfactant CTAT (cetyl trimethylammonium p-toluenesulphonate), below the overlap concentration c$^{\star}$. At these concentrations, CTAT forms cylindrical micelles and shows a pronounced shear thickening transition above a concentration-dependent critical shear rate $\dot\gamma_{c}$. An analysis of the time-series of the stress relaxations at controlled shear rates in the shear-thickening regime shows the existence of correlation dimensions greater than two and positive Lyapunov exponents. This indicates the existence of deterministic chaos in the dynamics of stress relaxation at these concentrations and shear rates. The observed chaotic behaviour may be attributed to the stick-slip between the shear - induced structure (SIS) formed in the sheared surfactant solution and the coexisting dilute phase. At still higher shear rates, when the SIS spans the Couette, there is a transition to higher-dimensional dynamics arising out of the breakage and recombination of the SIS. | en |
| dc.language.iso | en | en |
| dc.publisher | Institute of Physics | en |
| dc.relation.uri | http://arxiv.org/abs/cond-mat/0012489 | en |
| dc.relation.uri | http://dx.doi.org/10.1209/epl/i2001-00539-0 | en |
| dc.rights | 2001 Institute of Physics | en |
| dc.title | Chaotic Dynamics in Shear-thickening Surfactant Solutions | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (SCM) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2001_Europhysics Letters_V56_p447.pdf Restricted Access | Restricted Access | 194.82 kB | Adobe PDF | View/Open Request a copy |
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