Drop impact of shear thickening liquids
Abstract
The impact of drops of concentrated non-Brownian suspensions (cornstarch and polystyrene spheres) onto a solid surface is investigated experimentally. The spreading dynamics and maxi- mal deformation of the droplet of such shear thickening liquids are found to be markedly different from the impact of Newtonian drops. A particularly striking observation is that the maximal de- formation is independent of the drop velocity and that the deformation suddenly stops during the impact phase. Both observations are due to the shear-thickening rheology of the suspensions, as is theoretically explained from a balance between the kinetic energy and the viscously-dissipated en- ergy, from which we establish a scaling relation between drop maximal deformation and rheological parameters of concentrated suspensions.
Keywords
Cite
@article{arxiv.1306.3320,
title = {Drop impact of shear thickening liquids},
author = {Francois Boyer and Jacco H. Snoeijer and J. Frits Dijksman and Detlef Lohse},
journal= {arXiv preprint arXiv:1306.3320},
year = {2016}
}
Comments
5 pages, submitted to Phys. Rev. Lett