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dc.contributor.authorThoroddsen, Sigurdur T
dc.contributor.authorTakehara, K.
dc.contributor.authorEtoh, T. G.
dc.contributor.authorOhl, C.-D.
dc.date.accessioned2015-05-14T06:26:58Z
dc.date.available2015-05-14T06:26:58Z
dc.date.issued2009-11-02
dc.identifier.citationSpray and microjets produced by focusing a laser pulse into a hemispherical drop 2009, 21 (11):112101 Physics of Fluids
dc.identifier.issn10706631
dc.identifier.doi10.1063/1.3253394
dc.identifier.urihttp://hdl.handle.net/10754/552735
dc.description.abstractWe use high-speed video imaging to study laser disruption of the free surface of a hemispheric drop. The drop sits on a glass surface and the Nd:YAG (yttrium aluminum garnet) laser pulse propagates through the drop and is focused near the free surface from below. We focus on the evolution of the cylindrical liquid sheet and spray which emerges out of the drop and resembles typical impact crowns. The tip of the sheet emerges at velocities over 1 km/s. The tip of the crown breaks up into fine spray some of which is sucked back into the growing cavity at about 100 m/s. We measure the size of the typical spray droplets to be about 3 μm. We also show the formation of fine microjets, which are produced when the laser is focused inside the drop and the shock front hits small bubbles sitting under the free surface. For water these microjets are 5–50 μm in diameter and exit at 100–250 m/s. For higher viscositydrops, these jets can emerge at over 500 m/s.
dc.publisherAIP Publishing
dc.relation.urlhttp://scitation.aip.org/content/aip/journal/pof2/21/11/10.1063/1.3253394
dc.rightsArchived with thanks to Physics of Fluids
dc.titleSpray and microjets produced by focusing a laser pulse into a hemispherical drop
dc.typeArticle
dc.contributor.departmentHigh-Speed Fluids Imaging Laboratory
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalPhysics of Fluids
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionDepartment of Civil and Environmental Engineering, Kinki University, Higashi-Osaka 577-8502, Japan
dc.contributor.institutionSchool of Physical and Mathematical Sciences, Division of Physics and Applied Physics, Nanyang Technological University, 637371 Singapore
kaust.personThoroddsen, Sigurdur T.
refterms.dateFOA2018-06-14T07:46:21Z
dc.date.published-online2009-11-02
dc.date.published-print2009-11


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