Compressible modes in a square lid-driven cavity

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dc.contributor.authorBergamo, Leandro Fernandes
dc.contributor.authorGennaro, Elmer Mateus [UNESP]
dc.contributor.authorTheofilis, Vassilis
dc.contributor.authorMedeiros, Marcello Augusto Faraco
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidad Politécnica de Madrid
dc.date.accessioned2015-10-22T07:12:12Z
dc.date.available2015-10-22T07:12:12Z
dc.date.issued2015-07-01
dc.description.abstractThis paper studies the effect of compressibility on the linear stability of a two-dimensional lid-driven cavity flow in the subsonic regime. The base flow is generated by high fidelity direct numerical simulation and a biglobal mode instability analysis is carried out by a matrix forming approach. The eigenvalue problem is discretized by high-order finite differences and Arnoldi algorithm is used to reduce the size of the problem. The solution procedure uses sparse matrix techniques. Influence of Mach number on the modes known from incompressible calculations is presented, showing that compressibility has a stabilizing effect. New modes that appear only for compressible flows are presented and their relationship with duct acoustics is investigated.en
dc.description.affiliationUniversidade de São Paulo, Departamento de Engenharia Aeronáutica, Faculdade de Engenharia de São Carlos
dc.description.affiliationUniversidad Politécnica de Madrid, School of Aeronautics
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de Engenharia de Telecomunicações, Campus Experimental de São João da Boa Vista
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipMarie Curie Grant
dc.description.sponsorshipIdMarie Curie Grant: PIRSES-GA-2009-247651
dc.format.extent125-134
dc.identifierhttp://www.sciencedirect.com/science/article/pii/S1270963815001030
dc.identifier.citationAerospace Science And Technology. Paris: Elsevier France-editions Scientifiques Medicales Elsevier, v. 44, p. 125-134, 2015.
dc.identifier.doi10.1016/j.ast.2015.03.010
dc.identifier.issn1270-9638
dc.identifier.lattes5153133418311775
dc.identifier.orcid0000-0003-1074-396X
dc.identifier.orcid0000-0003-1074-396X
dc.identifier.urihttp://hdl.handle.net/11449/129808
dc.identifier.wosWOS:000356982200013
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofAerospace Science And Technology
dc.relation.ispartofjcr2.228
dc.relation.ispartofsjr0,796
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectCompressible flowen
dc.subjectGlobal linear stability analysisen
dc.subjectCompressible global linear instabilityen
dc.subjectCavity flowen
dc.titleCompressible modes in a square lid-driven cavityen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes5153133418311775[2]
unesp.author.orcid0000-0003-1074-396X[2]
unesp.author.orcid0000-0003-1074-396X[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, São João da Boa Vistapt

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