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Splashing onset in dense suspension droplets

Splashing onset in dense suspension droplets
Splashing onset in dense suspension droplets
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.
1-5
Peters, Ivo
222d846e-e620-4017-84cb-099b14ff2d75
Xu, Qin
06e373c2-5e1e-4bac-8a2e-bf2922d65f3b
Jaeger, Heinrich M.
ade31874-6896-4cfa-9ca3-6ac1abffc770
Peters, Ivo
222d846e-e620-4017-84cb-099b14ff2d75
Xu, Qin
06e373c2-5e1e-4bac-8a2e-bf2922d65f3b
Jaeger, Heinrich M.
ade31874-6896-4cfa-9ca3-6ac1abffc770

Peters, Ivo, Xu, Qin and Jaeger, Heinrich M. (2013) Splashing onset in dense suspension droplets. Physical Review Letters, 111 (2), 1-5. (doi:10.1103/PhysRevLett.111.028301).

Record type: Article

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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More information

e-pub ahead of print date: 9 July 2013
Published date: 12 July 2013
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 385025
URI: http://eprints.soton.ac.uk/id/eprint/385025
PURE UUID: a6f6b9b4-ee72-4242-8126-a8ade0e3a3c7
ORCID for Ivo Peters: ORCID iD orcid.org/0000-0002-3549-3322

Catalogue record

Date deposited: 14 Jan 2016 16:47
Last modified: 21 Nov 2021 03:12

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Contributors

Author: Ivo Peters ORCID iD
Author: Qin Xu
Author: Heinrich M. Jaeger

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