Shear-thickening induced by Faraday waves in dilute wormlike micelles - ENS de Lyon - École normale supérieure de Lyon Access content directly
Journal Articles EPL - Europhysics Letters Year : 2006

Shear-thickening induced by Faraday waves in dilute wormlike micelles

Abstract

We investigate the effect of surface waves generated by the Faraday instability on a shear-thickening surfactant solution under vertical vibrations. We show that a prolonged oscillation of the surface above the instability onset leads to an increase of the fluid viscosity. This phenomenon is evidenced by comparing the time needed for the instability to develop in the fluid at rest and once the fluid has been shaken above onset: pre-shaking may delay the instability by two orders of magnitude. A simple model based on a time-dependent viscosity is proposed which accounts quantitatively for the experimental observations.
Fichier principal
Vignette du fichier
epl9625.pdf (135.8 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

ensl-00527142 , version 1 (18-10-2010)

Identifiers

Cite

Pierre Ballesta, Sébastien Manneville. Shear-thickening induced by Faraday waves in dilute wormlike micelles. EPL - Europhysics Letters, 2006, 76 (3), pp.429-435. ⟨10.1209/epl/i2006-10294-2⟩. ⟨ensl-00527142⟩
68 View
154 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More