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Hydrodynamic signatures of stationary marangoni-driven surfactant transport
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Bandi, M. M., Akella, V. S., Singh, D. K., Singh, R. S. and Mandre, S. (2017) Hydrodynamic signatures of stationary marangoni-driven surfactant transport. Physical Review Letters, 119 (26). 264501 . doi:10.1103/PhysRevLett.119.264501 ISSN 0031-9007.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.119.264501
Abstract
We experimentally study steady Marangoni-driven surfactant transport on the interface of a deep water layer. Using hydrodynamic measurements, and without using any knowledge of the surfactant physicochemical properties, we show that sodium dodecyl sulphate and Tergitol 15-S-9 introduced in low concentrations result in a flow driven by adsorbed surfactant. At higher surfactant concentration, the flow is dominated by the dissolved surfactant. Using camphoric acid, whose properties are a priori unknown, we demonstrate this method’s efficacy by showing its spreading is adsorption dominated.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > QA Mathematics Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Mathematics | ||||||
Library of Congress Subject Headings (LCSH): | Hydrodynamics -- Mathematical models, Marangoni effect, Liquid-liquid interfaces -- Mathematical models, Surface active agents -- Mathematical models, Cellular flows | ||||||
Journal or Publication Title: | Physical Review Letters | ||||||
Publisher: | American Physical Society | ||||||
ISSN: | 0031-9007 | ||||||
Official Date: | 28 December 2017 | ||||||
Dates: |
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Volume: | 119 | ||||||
Number: | 26 | ||||||
Article Number: | 264501 | ||||||
DOI: | 10.1103/PhysRevLett.119.264501 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 25 October 2019 | ||||||
Date of first compliant Open Access: | 25 October 2019 |
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