Drop impact of shear thickening liquids
arXiv:1306.3320 · doi:10.1103/PhysRevFluids.1.013901
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.
5 pages, submitted to Phys. Rev. Lett
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Cited by in corpus (6)
- On the spreading of impacting drops
- Interparticle hydrogen bonding can elicit shear jamming in dense suspensions
- Shear-thickening in presence of adhesive contact forces: the singularity of cornstarch
- Transient flows and migration in granular suspensions: key role of Reynolds-like dilatancy
- Deformation upon impact of a concentrated suspension drop
- Competition between shear and biaxial extensional viscous dissipation in the expansion dynamics of Newtonian and rheo-thinning liquid sheets