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dc.contributor.authorThoraval, Marie-Jean
dc.contributor.authorLi, Yangfan
dc.contributor.authorThoroddsen, Sigurdur T
dc.date.accessioned2016-05-08T15:14:36Z
dc.date.available2016-05-08T15:14:36Z
dc.date.issued2016-03-29
dc.identifier.citationVortex-ring-induced large bubble entrainment during drop impact 2016, 93 (3) Physical Review E
dc.identifier.issn2470-0045
dc.identifier.issn2470-0053
dc.identifier.pmid27078468
dc.identifier.doi10.1103/PhysRevE.93.033128
dc.identifier.urihttp://hdl.handle.net/10754/608614
dc.description.abstractFor a limited set of impact conditions, a drop impacting onto a pool can entrap an air bubble as large as its own size. The subsequent rise and rupture of this large bubble plays an important role in aerosol formation and gas transport at the air-sea interface. The large bubble is formed when the impact crater closes up near the pool surface and is known to occur only for drops that are prolate at impact. Herein we use experiments and numerical simulations to show that a concentrated vortex ring, produced in the neck between the drop and the pool, controls the crater deformations and pinchoff. However, it is not the strongest vortex rings that are responsible for the large bubbles, as they interact too strongly with the pool surface and self-destruct. Rather, it is somewhat weaker vortices that can deform the deeper craters, which manage to pinch off the large bubbles. These observations also explain why the strongest and most penetrating vortex rings emerging from drop impacts are not produced by oblate drops but by more prolate drop shapes, as had been observed in previous experiments.
dc.description.sponsorshipThe research reported in this publication was supported by King Abdullah University of Science and Technology (KAUST).
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.relation.urlhttp://link.aps.org/doi/10.1103/PhysRevE.93.033128
dc.rightsArchived with thanks to Physical Review E. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
dc.titleVortex-ring-induced large bubble entrainment during drop impact
dc.typeArticle
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentHigh-Speed Fluids Imaging Laboratory
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalPhysical Review E
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionPhysics of Fluids Group, Faculty of Science and Technology, Mesa+ Institute, University of Twente, 7500 AE Enschede, The Netherlands
dc.contributor.institutionInternational Center for Applied Mechanics, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
dc.contributor.institutionMechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
dc.identifier.arxivid1601.01760
kaust.personThoraval, Marie-Jean
kaust.personThoroddsen, Sigurdur T.
refterms.dateFOA2018-06-13T10:24:06Z


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