Splashing onset in dense suspension droplets

Abstract

We investigate the impact of droplets of dense suspensions onto a solid substrate. We show that a global hydrodynamic balance is unable to predict the splash onset and propose to replace it by an energy balance at the level of the particles in the suspension. We experimentally verify that the resulting, particle-based Weber number gives a reliable, particle size and density dependent splash onset criterion. We further show that the same argument also explains why in bimodal systems smaller particles are more likely to escape than larger ones.

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Cited by in corpus (9)

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• From splashing to bouncing: the influence of viscosity on the impact of suspension droplets on a solid surface
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• Dense Suspension Splat: Monolayer Spreading and Hole Formation After Impact
• Transient flows and migration in granular suspensions: key role of Reynolds-like dilatancy
• Surface impacts and collisions of particle-laden nanodrops
• Deformation upon impact of a concentrated suspension drop
• Getting jammed in all directions: Dynamic shear jamming around a cylinder towed through a dense suspension
• Drop Impact Dynamics of Complex Fluids: A Review