Still water: dead zones and collimated ejecta from the impact of granular jets
arXiv:1304.4671 · doi:10.1103/PhysRevLett.111.168001
Abstract
When a dense granular jet hits a target, it forms a large dead zone and ejects a highly collimated conical sheet with a well-defined opening angle. Using experiments, simulations, and continuum modeling, we find that this opening angle is insensitive to the precise target shape and the dissipation mechanisms in the flow. We show that this surprising insensitivity arises because dense granular jet impact, though highly dissipative, is nonetheless controlled by the limit of perfect fluid flow.
5 pages, 5 figures, submitted to Physical Review Letters
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Cited by in corpus (6)
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- From splashing to bouncing: the influence of viscosity on the impact of suspension droplets on a solid surface
- Impact dynamics of granular jets with non-circular cross-sections
- Drag Law of Two Dimensional Granular Fluids
- Head-on collisions of dense granular jets
- Particle flows around an intruder