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Thermal delay of drop coalescence

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dc.contributor.author Geri, Michela
dc.contributor.author Keshavarz, Bavand
dc.contributor.author McKinley, Gareth H
dc.contributor.author Bush, John W. M.
dc.date.accessioned 2017-11-16T15:24:16Z
dc.date.available 2017-11-16T15:24:16Z
dc.date.issued 2017-11
dc.date.submitted 2017-09
dc.identifier.issn 0022-1120
dc.identifier.issn 1469-7645
dc.identifier.uri http://hdl.handle.net/1721.1/112194
dc.description.abstract We present the results of a combined experimental and theoretical study of drop coalescence in the presence of an initial temperature difference 𝛥T[subscript 0] between a drop and a bath of the same liquid. We characterize experimentally the dependence of the residence time before coalescence on 𝛥T[subscript 0] for silicone oils with different viscosities. Delayed coalescence arises above a critical temperature difference 𝛥T[subscript c] that depends on the fluid viscosity: for 𝛥T[subscript 0] > 𝛥T[subscript c], the delay time increases 𝛥T[subscript 0] [superscript 2/3] as for all liquids examined. This observed dependence is rationalized theoretically through consideration of the thermocapillary flows generated within the drop, the bath and the intervening air layer. en_US
dc.description.sponsorship National Science Foundation (U.S.) (Grant CMMI-1727565) en_US
dc.description.sponsorship National Science Foundation (U.S.) (Grant DMS-1614043) en_US
dc.language.iso en_US
dc.publisher Cambridge University Press en_US
dc.relation.isversionof https://doi.org/10.1017/jfm.2017.686 en_US
dc.rights Creative Commons Attribution-Noncommercial-Share Alike en_US
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/ en_US
dc.source Prof Michela Geri en_US
dc.title Thermal delay of drop coalescence en_US
dc.type Article en_US
dc.identifier.citation Geri, Michela et al. “Thermal Delay of Drop Coalescence.” Journal of Fluid Mechanics 833 (December 2017): R3 © 2017 Cambridge University Press en_US
dc.contributor.department Massachusetts Institute of Technology. Department of Mechanical Engineering en_US
dc.contributor.department Massachusetts Institute of Technology. Department of Mathematics en_US
dc.contributor.approver Geri, Michela en_US
dc.contributor.mitauthor Geri, Michela
dc.contributor.mitauthor Keshavarz, Bavand
dc.contributor.mitauthor McKinley, Gareth H
dc.contributor.mitauthor Bush, John W. M.
dc.relation.journal Journal of Fluid Mechanics en_US
dc.identifier.mitlicense OPEN_ACCESS_POLICY en_US
dc.eprint.version Author's final manuscript en_US
dc.type.uri http://purl.org/eprint/type/JournalArticle en_US
eprint.status http://purl.org/eprint/status/PeerReviewed en_US
dspace.orderedauthors Geri, Michela; Keshavarz, Bavand; McKinley, Gareth H.; Bush, John W. M. en_US
dspace.embargo.terms N en_US
dc.identifier.orcid https://orcid.org/0000-0002-6393-5378
dc.identifier.orcid https://orcid.org/0000-0002-1988-8500
dc.identifier.orcid https://orcid.org/0000-0001-8323-2779
dc.identifier.orcid https://orcid.org/0000-0002-7936-7256


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