Correction of edge-flame propagation speed in a counterflow, annular slot burner

Handle URI:
http://hdl.handle.net/10754/581403
Title:
Correction of edge-flame propagation speed in a counterflow, annular slot burner
Authors:
Tran, Vu Manh ( 0000-0002-6713-4201 ) ; Cha, Min Suk ( 0000-0003-4059-3421 )
Abstract:
To characterize the propagation modes of flames, flame propagation speed must be accurately calculated. The impact of propagating edge-flames on the flow fields of unburned gases is limited experimentally. Thus, few studies have evaluated true propagation speeds by subtracting the flow velocities of unburned gases from flame displacement speeds. Here, we present a counterflow, annular slot burner that provides an ideal one-dimensional strain rate and lengthwise zero flow velocity that allowed us to study the fundamental behaviors of edge-flames. In addition, our burner has easy optical access for detailed laser diagnostics. Flame displacement speeds were measured using a high-speed camera and related flow fields of unburned gases were visualized by particle image velocimetry. These techniques allowed us to identify significant modifications to the flow fields of unburned gases caused by thermal expansion of the propagating edges, which enabled us to calculate true flame propagation speeds that took into account the flow velocities of unburned gases.
KAUST Department:
Clean Combustion Research Center
Citation:
Correction of edge-flame propagation speed in a counterflow, annular slot burner 2015 Combustion and Flame
Publisher:
Elsevier BV
Journal:
Combustion and Flame
Issue Date:
22-Oct-2015
DOI:
10.1016/j.combustflame.2015.09.011
Type:
Article
ISSN:
00102180
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0010218015003144
Appears in Collections:
Articles; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorTran, Vu Manhen
dc.contributor.authorCha, Min Suken
dc.date.accessioned2015-10-29T08:11:45Zen
dc.date.available2015-10-29T08:11:45Zen
dc.date.issued2015-10-22en
dc.identifier.citationCorrection of edge-flame propagation speed in a counterflow, annular slot burner 2015 Combustion and Flameen
dc.identifier.issn00102180en
dc.identifier.doi10.1016/j.combustflame.2015.09.011en
dc.identifier.urihttp://hdl.handle.net/10754/581403en
dc.description.abstractTo characterize the propagation modes of flames, flame propagation speed must be accurately calculated. The impact of propagating edge-flames on the flow fields of unburned gases is limited experimentally. Thus, few studies have evaluated true propagation speeds by subtracting the flow velocities of unburned gases from flame displacement speeds. Here, we present a counterflow, annular slot burner that provides an ideal one-dimensional strain rate and lengthwise zero flow velocity that allowed us to study the fundamental behaviors of edge-flames. In addition, our burner has easy optical access for detailed laser diagnostics. Flame displacement speeds were measured using a high-speed camera and related flow fields of unburned gases were visualized by particle image velocimetry. These techniques allowed us to identify significant modifications to the flow fields of unburned gases caused by thermal expansion of the propagating edges, which enabled us to calculate true flame propagation speeds that took into account the flow velocities of unburned gases.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0010218015003144en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Combustion and Flame. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Combustion and Flame, 22 October 2015. DOI: 10.1016/j.combustflame.2015.09.011en
dc.subjectAnnular counterflowen
dc.subjectEdge-flameen
dc.subjectDisplacement speeden
dc.subjectPropagation speeden
dc.titleCorrection of edge-flame propagation speed in a counterflow, annular slot burneren
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.identifier.journalCombustion and Flameen
dc.eprint.versionPost-printen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorTran, Vu Manhen
kaust.authorCha, Min Suken
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