Experimental characterisation of sprays resulting from impacts of liquid-containing projectiles

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorHostikka, Simo
dc.contributor.authorSilde, Ari
dc.contributor.authorSikanen, Topi
dc.contributor.authorVepsä, Ari
dc.contributor.authorPaajanen, Antti
dc.contributor.authorHonkanen, Markus
dc.contributor.departmentRakennustekniikan laitosfi
dc.contributor.departmentDepartment of Civil and Structural Engineeringen
dc.contributor.schoolInsinööritieteiden korkeakoulufi
dc.contributor.schoolSchool of Engineeringen
dc.date.accessioned2017-12-27T10:02:55Z
dc.date.available2017-12-27T10:02:55Z
dc.date.issued2015
dc.description.abstractModelling and analysing fires following aircraft impacts requires information about the behaviour of liquid fuel. In this study, we investigated sprays resulting from the impacts of water-filled metal projectiles on a hard wall. The weights of the projectiles were in the range of 38–110 kg, with 8.6–68 kg water, and the impact speeds varied between 96 and 169 m/s. The overall spray behaviour was observed with high-speed video cameras. Ultra-high-speed cameras were used in backlight configuration for measuring the droplet size and velocity distributions. The results indicate that the liquid leaves the impact position as a thin sheet of spray in a direction perpendicular to the projectile velocity. The initial spray speeds were 1.5–2.5 times the impact speed, and the Sauter mean diameters were in the 147–344 μm range. This data can be used as boundary conditions in CFD fire analyses, considering the two-phase fuel flow. The overall spray observations, including the spray deceleration rate, can be used for validating the model.en
dc.description.versionPeer revieweden
dc.format.extent388-402
dc.format.mimetypeapplication/pdfen
dc.identifier.citationHostikka, Simo & Silde, Ari & Sikanen, Topi & Vepsä, Ari & Paajanen, Antti & Honkanen, Markus. 2015. Experimental characterisation of sprays resulting from impacts of liquid-containing projectiles. Nuclear Engineering and Design. Volume 295. 388-402. ISSN 0029-5493 (printed). DOI: 10.1016/j.nucengdes.2015.09.008.en
dc.identifier.doi10.1016/j.nucengdes.2015.09.008
dc.identifier.issn0029-5493 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/29544
dc.identifier.urnURN:NBN:fi:aalto-201511135066
dc.language.isoenen
dc.publisherElsevier BVen
dc.relationinfo:eu-repo/grantAgreement/SAFIR2014
dc.relation.ispartofseriesNuclear Engineering and Designen
dc.relation.ispartofseriesVolume 295
dc.rights© 2015 Elsevier BV. This is the accepted version of the following article: Hostikka, Simo & Silde, Ari & Sikanen, Topi & Vepsä, Ari & Paajanen, Antti & Honkanen, Markus. 2015. Experimental characterisation of sprays resulting from impacts of liquid-containing projectiles. Nuclear Engineering and Design. Volume 295. 388-402. ISSN 0029-5493 (printed). DOI: 10.1016/j.nucengdes.2015.09.008, which has been published in final form at http://www.sciencedirect.com/science/article/pii/S002954931500401X.en
dc.rights.holderElsevier BV
dc.subject.keywordaircraft impacten
dc.subject.keywordsprayen
dc.subject.keywordfuelen
dc.subject.keywordnuclear poweren
dc.subject.otherCivil engineeringen
dc.subject.otherEnergyen
dc.subject.otherMechanical engineeringen
dc.titleExperimental characterisation of sprays resulting from impacts of liquid-containing projectilesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionPost printen
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