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The differential diffusion effect of the intermediate species on the stability of premixed flames propagating in microchannels

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Mecánica de Fluidoses
dc.contributor.authorFernández-Galisteo, Daniel
dc.contributor.authorJiménez, Carmen
dc.contributor.authorSánchez-Sanz, Mario
dc.contributor.authorKurdyumov, Vadim N.
dc.date.accessioned2015-09-14T08:23:26Z
dc.date.available2015-09-14T08:23:26Z
dc.date.issued2014-08-26
dc.description.abstractThe propagation of premixed flames in adiabatic and non-catalytic planar microchannels subject to an assisted or opposed Poiseuille flow is considered. The diffusive-thermal model and the well-known two-step chain-branching kinetics are used in order to investigate the role of the differential diffusion of the intermediate species on the spatial and temporal flame stability. This numerical study successfully compares steady-state and time-dependent computations to the linear stability analysis of the problem. Results show that for fuel Lewis numbers less than unity, LeF 1, flames propagating in adiabatic channels suffer from oscillatory instabilities. The Poiseuille flow stabilises the flame and the effect of LeZ is opposite to that found for LeF < 1. Small values of LeZ further destabilise the flame to oscillating or pulsating instabilities.en
dc.description.sponsorshipThis research was supported by the Spanish Ministerio de Ciencia e Innovación (MICINN) [Projects #ENE2011-27686-C02-01, #ENE2012-33213]; the Comunidad de Madrid [Project #S2009/ENE-1597, CONSOLIDER CSD2010-00011].en
dc.description.statusPublicado
dc.format.extent25
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationCombustion Theory and Modelling 18 (2014) 4-5, pp. 582-605en
dc.identifier.doi10.1080/13647830.2014.946970
dc.identifier.issn1364-7830
dc.identifier.publicationfirstpage582
dc.identifier.publicationissue4-5
dc.identifier.publicationlastpage605
dc.identifier.publicationtitleCombustion theory and modellingen
dc.identifier.publicationvolume18
dc.identifier.urihttps://hdl.handle.net/10016/21551
dc.identifier.uxxiAR/0000015801
dc.language.isoeng
dc.publisherTaylor & Francisen
dc.relation.projectIDGobierno de España. ENE2012-33213es
dc.relation.projectIDComunidad de Madrid. S2009/ENE-1597/HYSYCOMBes
dc.relation.publisherversionhttp://dx.doi.org/10.1080/13647830.2014.946970
dc.rights© 2014 Taylor & Francisen
dc.rights.accessRightsopen access
dc.subject.ecienciaIngeniería Industriales
dc.subject.otherChain-branching kinetic modelen
dc.subject.otherMicro-combustionen
dc.subject.otherOscillatory instabilityen
dc.subject.otherPremixed flames dynamicsen
dc.subject.otherSymmetry-breaking bifurcationen
dc.subject.otherChain-branching kineticsen
dc.subject.otherDifferential diffusion effecten
dc.subject.otherIntermediate specieen
dc.subject.otherOscillatory instabilityen
dc.subject.otherPremixed Flameen
dc.subject.otherSymmetry-breaking bifurcationsen
dc.titleThe differential diffusion effect of the intermediate species on the stability of premixed flames propagating in microchannelsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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