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AFM study of hydrodynamics in boundary layers around micro- and nanofibers

Dupré de Baubigny, Julien and Benzaquen, Michael and Mortagne, Caroline and Devailly, Clémence and Kosgodagan Acharige, Sébastien and Laurent, Justine and Steinberger, Audrey and Salvetat, Jean-Paul and Aimé, Jean-Pierre and Ondarçuhu, Thierry AFM study of hydrodynamics in boundary layers around micro- and nanofibers. (2016) Physical Review Fluids, 1 (4). 044104. ISSN 2469-990X

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Official URL: http://doi.org/10.1103/PhysRevFluids.1.044104

Abstract

The description of hydrodynamic interactions between a particle and the surrounding liquid, down to the nanometer scale, is of primary importance since confined liquids are ubiquitous in many natural and technological situations. In this paper we combine three nonconventional atomic force microscopes to study hydrodynamics around micro and nanocylinders. These complementary methods allow the independent measurement of the added mass and friction terms over a large range of probe sizes, fluid viscosities,and solicitation conditions. A theoretical model based on an analytical description of the velocity field around the probe shows that the friction force depends on a unique parameter, the ratio of the probe radius to the thickness of the viscous boundary layer.We demonstrate that the whole range of experimental data can be gathered in a master curve, which is well reproduced by the model. This validates the use of these atomic force microscopy modes for a quantitative study of hydrodynamics and opens the way to the investigation of other sources of dissipation in simple and complex fluids down to the submicron scale.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Normale Supérieure de Lyon - ENS de Lyon (FRANCE)
Other partners > Ecole Supérieure de Physique et de Chimie Industrielles - ESPCI (FRANCE)
Other partners > Institut Polytechnique de Bordeaux - IPB (FRANCE)
Other partners > Université Claude Bernard-Lyon I - UCBL (FRANCE)
Other partners > Bordeaux Sciences Agro (FRANCE)
Other partners > Université de Bordeaux (FRANCE)
Laboratory name:
Funders:
Agence nationale de la recherche (FRANCE) - European Commission
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Deposited By: Thierry ONDARCUHU
Deposited On:07 Sep 2018 16:04

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