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dc.contributor.authorYuan, R
dc.contributor.authorKariuki, J
dc.contributor.authorDowlut, A
dc.contributor.authorBalachandran, R
dc.contributor.authorMastorakos, E
dc.date.accessioned2015-01-27T16:39:25Z
dc.date.available2015-01-27T16:39:25Z
dc.date.issued2015
dc.identifier.citationProceedings of the Combustion Institute Volume 35, Issue 2, 2015, Pages 1649–1656. DOI: 10.1016/j.proci.2014.06.012
dc.identifier.issn1540-7489
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/246618
dc.descriptionThis is the accepted manuscript. The final version is available from Elsevier at http://www.sciencedirect.com/science/article/pii/S1540748914001709.
dc.description.abstractJoint PLIF measurements of CH2O and OH were performed in a swirl-stabilized n-heptane spray flame at conditions close to extinction. Simulations of laminar counterflow heptane flames at different strain rates showed that the heat release could be approximately represented by the product CH2OxOH, but also that this product cannot visualise the heat release at the lean side of stoichiometry. The simulations suggest that the outline of CH2O regions in PLIF images could be an approximate indicator of the stoichiometric mixture fraction iso-line. Due to the intense turbulence and local extinction, individual PLIF images show a very variable behaviour. They indicate rich zones, reaction sheet breaks, lift-off, and they suggest that this flame is mostly of non-premixed character. The mean heat release rate as represented here is consistent with inverse Abel-transformed OH* chemiluminescence imaging. The usefulness of this technique for spray flames is discussed.
dc.description.sponsorshipR. Yuan has been funded by an EPSRC Dorothy Hodgkin Studentship. Dr Balachandran and Mr Dowlut gratefully acknowledge support from EPSRC for research grant EP/G063788/1 and UCL/EPSRC Doctoral Training Account respectively that enabled the measurement methods presented here.
dc.language.isoen
dc.publisherElsevier BV
dc.rightsAll Rights Reserved
dc.rights.urihttps://www.rioxx.net/licenses/all-rights-reserved/
dc.subjectExtinction
dc.subjectswirl
dc.subjectformaldehyde fluorescence
dc.subjectheptane spray
dc.titleReaction zone visualisation in swirling spray n-heptane flames
dc.typeArticle
dc.type.versionaccepted version
prism.endingPage1656
prism.issueIdentifier2
prism.publicationNameProceedings of the Combustion Institute
prism.startingPage1649
prism.volume35
dc.rioxxterms.funderEPSRC
dc.rioxxterms.projectidEP/G063788/1
pubs.declined2017-10-11T13:54:34.234+0100
rioxxterms.versionofrecord10.1016/j.proci.2014.06.012
dc.identifier.eissn1873-2704
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/J021644/1)
rioxxterms.freetoread.startdate2015-06-26


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