Dense Suspension Splat: Monolayer Spreading and Hole Formation After Impact

Abstract

We use experiments and minimal numerical models to investigate the rapidly expanding monolayer formed by the impact of a dense suspension drop against a smooth solid surface. The expansion creates a lace-like pattern of particle clusters separated by particle-free regions. Both the expansion and the development of the spatial inhomogeneity are dominated by particle inertia, therefore robust and insensitive to details of the surface wetting, capillarity and viscous drag.

4 pages (5 with references), and a total of 4 figures

References in corpus (4)

• A unified framework for non-Brownian suspension flows and soft amorphous solids
• A First-Principles Constitutive Equation for Suspension Rheology
• Hydrodynamically-driven colloidal assembly in the thin-film entrainment regime
• Splashing onset in dense suspension droplets

Cited by in corpus (8)

• Dip-coating of suspensions
• Capillary filtering of particles during dip coating
• Non-Newtonian hydrodynamics for a dilute granular suspension under uniform shear flow
• From splashing to bouncing: the influence of viscosity on the impact of suspension droplets on a solid surface
• Deposition of a particle-laden film on the inner wall of a tube
• Surface impacts and collisions of particle-laden nanodrops
• Deformation upon impact of a concentrated suspension drop
• Drop Impact Dynamics of Complex Fluids: A Review