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Edge effect: Liquid sheet and droplets formed by drop impact close to an edge

Author(s)
Lejeune, S.; Gilet, T.; Bourouiba, Lydia
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DownloadPhysRevFluids.3.083601.pdf (5.207Mb)
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
Asymmetric liquid sheet fragmentation is ubiquitous in nature and potentially shapes critical phenomena such as rain-induced propagation of foliar diseases. In this experimental study, we investigate the formation and fragmentation of a liquid sheet upon impact of a drop close to the edge of a solid substrate. Both the impact Weber number and the offset, the distance from the impact point to the edge, are systematically varied. Their influence on the kinematics of the liquid sheet and the subsequent statistics of droplet ejection are rationalized. Three major asymmetry scenarios are identified and linked to distinct droplet ejection patterns. Scaling laws are proposed to rationalize these scenarios based on impact parameters.
Date issued
2018-08
URI
http://hdl.handle.net/1721.1/117342
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering; Massachusetts Institute of Technology. Fluid Dynamics of Disease Transmission Laboratory
Journal
Physical Review Fluids
Publisher
American Physical Society
Citation
Lejeune, S. et al. "Edge effect: Liquid sheet and droplets formed by drop impact close to an edge." Physical Review Fluids 3, 8 (August 2018): 083601 © 2018 American Physical Society
Version: Final published version
ISSN
2469-990X
2469-9918

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