Vortex Generation and Aeroacoustics in Asymmetric Wakes

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dc.contributor.authorMathias, Marlon Sproesser
dc.contributor.authorGennaro, Elmer M. [UNESP]
dc.contributor.authorMedeiros, Marcello A.F.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:39:06Z
dc.date.available2018-12-11T16:39:06Z
dc.date.issued2015-01-01
dc.description.abstractHigh-lift devices in an aircraft are important sound generators. These devices should be studied in order to further reduce overall aircraft noise. The high-lift devices operating at a high angle of attack promote the formation of large wakes. Owing to the generation of lift these wakes are asymmetric. A model has been proposed to investigate the sound generation and the vorticity dynamics in a two-dimensional asymmetric wake profile under spatial development. A DNS code was developed for this purpose and the investigation was based on direct numerical simulations of a two-dimensional compressible flow. The results indicated a significant increase in sound level due to vortex pairing which occurs after a substantial vortex deformation.en
dc.description.affiliationUniversidade de São Paulo USP, São Carlos School of Engineering, João Dagnone Av. 1100
dc.description.affiliationUniversidade Estadual Paulista, UNESP, Campus de São João da Boa Vista
dc.description.affiliationUnespUniversidade Estadual Paulista, UNESP, Campus de São João da Boa Vista
dc.format.extent590-594
dc.identifierhttp://dx.doi.org/10.1016/j.piutam.2015.03.060
dc.identifier.citationProcedia IUTAM, v. 14, p. 590-594.
dc.identifier.doi10.1016/j.piutam.2015.03.060
dc.identifier.issn2210-9838
dc.identifier.scopus2-s2.0-84940647637
dc.identifier.urihttp://hdl.handle.net/11449/167981
dc.language.isoeng
dc.relation.ispartofProcedia IUTAM
dc.relation.ispartofsjr0,254
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAeroacoustics
dc.subjectAsymmetric wake
dc.subjectDNS
dc.subjectVortex pairing
dc.titleVortex Generation and Aeroacoustics in Asymmetric Wakesen
dc.typeTrabalho apresentado em evento

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