Bacchin, Patrice and Glavatskiy, Kirill and Gerbaud, Vincent
Interfacially driven transport theory: a way to unify Marangoni and Osmotic flows.
(2019)
Physical Chemistry Chemical Physics. 1-11. ISSN 1463-9076
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(Document in English)
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Abstract
We show that the solvent behaviour in both diffusio-osmosis and Marangoni flow can be derived from a simple model of colloid-interface interactions. We demonstrate that the direction of the flow is regulated by a single value of the attractive parameter covering the purely repulsive and attractive – repulsive interaction cases. The proposed universality between diffusio-osmosis and Marangoni flow is extended further to include diffusio-phoresis. In particular, an object immersed to a colloidal solution moves towards the low concentration of the colloidal particles in the case of colloid-interface repulsion and towards the high concentration of the colloidal particles in the case of colloid-interface attraction. The approach combines the methods of fluid dynamics, molecular physics and transport phenomena and provides a tractable explanation of how the colloid-interface interactions affect the momentum balance and the transport phenomena (interfacially driven transport).
Item Type: | Article |
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HAL Id: | hal-02134681 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Other partners > University of Sydney (AUSTRALIA) |
Laboratory name: | |
Statistics: | download |
Deposited On: | 09 May 2019 09:24 |
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