AFM study of hydrodynamics in boundary layers around micro- and nanofibers - ENS de Lyon - École normale supérieure de Lyon Access content directly
Journal Articles Physical Review Fluids Year : 2016

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

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.
Fichier principal
Vignette du fichier
PhysRevFluids.1.044104.pdf (1.73 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

ensl-01474528 , version 1 (22-02-2017)

Identifiers

Cite

Julien Dupré de Baubigny, Michael Benzaquen, Caroline Mortagne, Clémence Devailly, Sébastien Kosgodagan Acharige, et al.. AFM study of hydrodynamics in boundary layers around micro- and nanofibers. Physical Review Fluids, 2016, 1, pp.44104 - 44104. ⟨10.1103/PhysRevFluids.1.044104⟩. ⟨ensl-01474528⟩
2278 View
408 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More