Please use this identifier to cite or link to this item: http://hdl.handle.net/11422/8308
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dc.contributor.authorHuang, Xiao-
dc.contributor.authorWang, Qian-Xi-
dc.contributor.authorZhang, A-Man-
dc.contributor.authorSu, Jian-
dc.date.accessioned2019-06-06T01:24:25Z-
dc.date.available2019-01-10-
dc.date.available2019-06-06T01:24:25Z-
dc.date.issued2018-01-10-
dc.identifier.issn1350-4177pt_BR
dc.identifier.urihttp://hdl.handle.net/11422/8308-
dc.description.abstractAcoustic bubbles have wide and important applications in ultrasonic cleaning, sonochemistry and medical ultrasonics. A two-microbubble system (TMS) under ultrasonic wave excitation is explored in the present study, by using the boundary element method (BEM) based on the potential flow theory. A parametric study of the behaviour of a TMS has been carried out in terms of the amplitude and direction of ultrasound as well as the sizes and separation distance of the two bubbles. Three regimes of the dynamic behaviour of the TMS have been identified in terms of the pressure amplitude of the ultrasonic wave. When subject to a strong wave with the pressure amplitude of 1 atm or larger, the two microbubbles become non-spherical during the first cycle of oscillation, with two counter liquid jets formed. When subject to a weak wave with the pressure amplitude of less than 0.5 atm, two microbubbles may be attracted, repelled, or translate along the wave direction with periodic stable separation distance, depending on their size ratio. However, for the TMS under moderate waves, bubbles undergo both non-spherical oscillation and translation as well as liquid jet rebounding.en
dc.languageengpt_BR
dc.publisherElsevierpt_BR
dc.relation.ispartofUltrasonics Sonochemistryen
dc.rightsAcesso Abertopt_BR
dc.subjectMicrobubble dynamicsen
dc.subjectUltrasonic waveen
dc.subjectBoundary element methoden
dc.titleDynamic behaviour of a two-microbubble system under ultrasonic wave excitationen
dc.typeArtigopt_BR
dc.identifier.doi10.1016/j.ultsonch.2018.01.012pt_BR
dc.description.resumoIndisponível.pt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentNúcleo Interdisciplinar de Dinâmica dos Fluidospt_BR
dc.subject.cnpqCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOSpt_BR
dc.citation.volume43pt_BR
dc.citation.spage166pt_BR
dc.citation.epage174pt_BR
dc.embargo.terms365 diaspt_BR
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