Ejecta evolution during cone impact

Handle URI:
http://hdl.handle.net/10754/563626
Title:
Ejecta evolution during cone impact
Authors:
Marston, Jeremy; Thoroddsen, Sigurdur T. ( 0000-0001-6997-4311 )
Abstract:
We present findings from an experimental investigation into the impact of solid cone-shaped bodies onto liquid pools. Using a variety of cone angles and liquid physical properties, we show that the ejecta formed during the impact exhibits self-similarity for all impact speeds for very low surface tension liquids, whilst for high-surface tension liquids similarity is only achieved at high impact speeds. We find that the ejecta tip can detach from the cone and that this phenomenon can be attributed to the air entrainment phenomenon. We analyse of a range of cone angles, including some ogive cones, and impact speeds in terms of the spatiotemporal evolution of the ejecta tip. Using superhydrophobic cones, we also examine the entry of cones which entrain an air layer.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Clean Combustion Research Center; Mechanical Engineering Program; High-Speed Fluids Imaging Laboratory
Publisher:
Cambridge University Press (CUP)
Journal:
Journal of Fluid Mechanics
Issue Date:
7-Jul-2014
DOI:
10.1017/jfm.2014.341
Type:
Article
ISSN:
00221120
Sponsors:
We thank K. Takehara and T. G. Etoh at Kinki University for the use of their highspeed cameras during the early stages of this work and J. Oliver and T. Truscott for fruitful discussions. We also thank KAUST for financial support.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorMarston, Jeremyen
dc.contributor.authorThoroddsen, Sigurdur T.en
dc.date.accessioned2015-08-03T12:04:46Zen
dc.date.available2015-08-03T12:04:46Zen
dc.date.issued2014-07-07en
dc.identifier.issn00221120en
dc.identifier.doi10.1017/jfm.2014.341en
dc.identifier.urihttp://hdl.handle.net/10754/563626en
dc.description.abstractWe present findings from an experimental investigation into the impact of solid cone-shaped bodies onto liquid pools. Using a variety of cone angles and liquid physical properties, we show that the ejecta formed during the impact exhibits self-similarity for all impact speeds for very low surface tension liquids, whilst for high-surface tension liquids similarity is only achieved at high impact speeds. We find that the ejecta tip can detach from the cone and that this phenomenon can be attributed to the air entrainment phenomenon. We analyse of a range of cone angles, including some ogive cones, and impact speeds in terms of the spatiotemporal evolution of the ejecta tip. Using superhydrophobic cones, we also examine the entry of cones which entrain an air layer.en
dc.description.sponsorshipWe thank K. Takehara and T. G. Etoh at Kinki University for the use of their highspeed cameras during the early stages of this work and J. Oliver and T. Truscott for fruitful discussions. We also thank KAUST for financial support.en
dc.publisherCambridge University Press (CUP)en
dc.subjectcontact linesen
dc.subjectinterfacial flows (free surface)en
dc.subjectjetsen
dc.titleEjecta evolution during cone impacten
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentHigh-Speed Fluids Imaging Laboratoryen
dc.identifier.journalJournal of Fluid Mechanicsen
dc.contributor.institutionDepartment of Chemical Engineering, Texas Tech UniversityLubbock, TX, United Statesen
kaust.authorMarston, Jeremyen
kaust.authorThoroddsen, Sigurdur T.en
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