Detonation front structure diagnostics through sooted foils

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dc.contributor.authorBidia, Frederico Cardoso Faria Della
dc.contributor.authorMarques, Carla Simone Tafuri
dc.contributor.authorPimenta, Amilcar Porto
dc.contributor.authorSantos, Jonathan Brandão Ramos [UNESP]
dc.contributor.institutionInstituto de Estudos Avançados (IEAv)
dc.contributor.institutionInstituto de Tecnologia da Aeronáutica (ITA)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T07:26:36Z
dc.date.available2022-04-29T07:26:36Z
dc.date.issued2014-07-01
dc.description.abstractThis work deals with a method for detonation wave front diagnostics through soot foils. The main goal is to develop the method for further detonation research to be developed at the Instituto Tecnológico de Aeronáutica (ITA), Brazil. The method consists in the use of smooth plates with soot impregnated surface, exposed to the medium where detonation will occur. The passing wave front selectively removes the soot, revealing triple points trajectories present on detonation waves structure. The trajectory tracks forms a distinctive pattern, like fish scale, called detonation cell. The main evaluating parameter is the detonation cell width, a dimension associated with the mixture's detonability. The soot deposition technique was tested, varying fuels, deposition time and deposition position. Six test runs were made, were in two occasions detonation cells were detected in the soot. The detonation cells were measured through optical techniques, then were compared with a theoretical model and light emissions measurements, validating results. Detonation cell sizes measured pointed out changes in Chapman-Jouguet velocity on detonation propagation within flow fluctuations usual in Pulse Detonation Engine (PDE).en
dc.description.affiliationCiências e Tecnologias Espaciais Aerotermodinâmica e Hipersônica Instituto de Estudos Avançados (IEAv)
dc.description.affiliationDivisão de Aerotermodinâmica e Hipersônica EAH-D Instituto de Estudos Avançados (IEAv)
dc.description.affiliationDepartamento de Propulsão Engenharia Aeronáutica Instituto de Tecnologia da Aeronáutica (ITA)
dc.description.affiliationEngenheiro Mecânico Universidade Estadual Paulista Júlio de Mesquita Filho Campus de Guaratinguetá
dc.description.affiliationUnespEngenheiro Mecânico Universidade Estadual Paulista Júlio de Mesquita Filho Campus de Guaratinguetá
dc.format.extent91-100
dc.identifierhttp://dx.doi.org/10.14393/19834071.2014.26671
dc.identifier.citationCiencia y Engenharia/ Science and Engineering Journal, v. 23, n. 2, p. 91-100, 2014.
dc.identifier.doi10.14393/19834071.2014.26671
dc.identifier.issn1983-4071
dc.identifier.issn0103-944X
dc.identifier.scopus2-s2.0-84952010905
dc.identifier.urihttp://hdl.handle.net/11449/228090
dc.language.isopor
dc.relation.ispartofCiencia y Engenharia/ Science and Engineering Journal
dc.sourceScopus
dc.subjectCombustion
dc.subjectDetonation
dc.subjectDiagnostics
dc.subjectPDE
dc.titleDetonation front structure diagnostics through sooted foilsen
dc.titleDiagnóstico da estrutura de frentes de detonação por meio de folhas com fuligempt
dc.typeArtigo

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Artigos - Engenharia Mecânica - FEG