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dc.contributor.authorAlchalabi, M.A.*
dc.contributor.authorKouraytem, Nadia*
dc.contributor.authorLi, Erqiang*
dc.contributor.authorThoroddsen, Sigurdur T*
dc.identifier.citationAlchalabi MA, Kouraytem N, Li EQ, Thoroddsen ST (2017) Vortex-Induced Vapor Explosion during Drop Impact on a Superheated Pool. Experimental Thermal and Fluid Science. Available:
dc.description.abstractUltra high-speed imaging is used to investigate the vapor explosion when a drop impacts onto a high-temperature pool. The two liquids are immiscible, a low boiling-temperature perfluorohexane drop, at room temperature, which impacts a high boiling-temperature soybean-oil pool, which is heated well above the boiling temperature of the drop. We observe different regimes: weak and strong nucleate boiling, film boiling or Leidenfrost regime and entrainment followed by vapor explosion. The vapor explosions were seen to depend on the formation of a rotational flow at the edge of the impact crater, near the pool surface, which resembles a vortex ring. This rotational motion entrains a thin sheet of the drop liquid, to become surrounded by the oil. In that region, the vapor explosion starts at a point after which it propagates azimuthally along the entire periphery at high speed.en
dc.description.sponsorshipMAA and NK contributed equally to this study. The research reported herein was supported by KAUST research funding. We acknowledge experimental advice from Ivan U. Vakarelski. We thank Tadd T. Truscott for help with the glass container fabrication. NK acknowledges partial support from the Clean Combustion Research Center, under CCF Extreme Combustion FCC/1/1975.en
dc.publisherElsevier BVen
dc.rights© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
dc.subjectVortex ringen
dc.subjectVapor explosionen
dc.subjectNucleate boilingen
dc.subjectFilm boilingen
dc.subjectLeidenfrost regimeen
dc.titleVortex-Induced Vapor Explosion during Drop Impact on a Superheated Poolen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division*
dc.contributor.departmentClean Combustion Research Center*
dc.identifier.journalExperimental Thermal and Fluid Scienceen
dc.contributor.institutionPower Systems Renewables Department, Saudi Aramco, 31311, Dhahran, Saudi Arabia*
kaust.authorAlchalabi, M.A.*
kaust.authorKouraytem, Nadia*
kaust.authorLi, Erqiang*
kaust.authorThoroddsen, Sigurdur T*

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© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Except where otherwise noted, this item's license is described as © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license