Skip to Main content Skip to Navigation
Journal articles

The Faraday instability in wormlike micelle solutions

Abstract : The behaviour of semi-dilute wormlike micelle solutions under vertical vibrations is investigated using classical measurements of the Faraday instability threshold along with two new experiments based on particle imaging velocimetry and birefringence. We provide evidence for the presence of oscillations of the critical acceleration and wave number with the vibration frequency, which are linked to oscillations of the velocity and birefringence fields along the vertical direction. These observations are interpreted in terms of standing elastic waves across the fluid layer. Such an interpretation is confirmed numerically by using the model proposed by Kumar [S. Kumar, Vibration-induced interfacial instabilities in viscoelastic fluids, Phys. Rev. E 65 (2002) 026305] for a viscoelastic fluid to calculate the velocity and deformation fields. Finally, further birefringence experiments above the instability threshold show that the Faraday instability does not induce disentanglement and breakage of the micellar network.
Complete list of metadata

Cited literature [39 references]  Display  Hide  Download
Contributor : Sébastien Manneville Connect in order to contact the contributor
Submitted on : Friday, October 15, 2010 - 2:49:07 PM
Last modification on : Tuesday, December 7, 2021 - 11:46:10 AM
Long-term archiving on: : Sunday, January 16, 2011 - 2:53:18 AM


Files produced by the author(s)




Pierre Ballesta, Sébastien Manneville. The Faraday instability in wormlike micelle solutions. Journal of Non-Newtonian Fluid Mechanics, Elsevier, 2007, 147 (1-2), pp.23-34. ⟨10.1016/j.jnnfm.2007.06.006⟩. ⟨ensl-00526693⟩



Record views


Files downloads