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dc.contributor.authorGray, Joshua A.T.
dc.contributor.authorLacoste, Deanna
dc.date.accessioned2020-09-30T13:18:09Z
dc.date.available2020-09-30T13:18:09Z
dc.date.issued2020-09-18
dc.date.submitted2019-11-08
dc.identifier.citationGray, J. A. T., & Lacoste, D. A. (2020). Effect of the plasma location on the deflagration-to-detonation transition of a hydrogen–air flame enhanced by nanosecond repetitively pulsed discharges. Proceedings of the Combustion Institute. doi:10.1016/j.proci.2020.06.369
dc.identifier.issn1540-7489
dc.identifier.doi10.1016/j.proci.2020.06.369
dc.identifier.urihttp://hdl.handle.net/10754/665386
dc.description.abstractThis work presents a method for using nanosecond repetitively pulsed (NRP) plasma discharges for accelerating a propagating flame such that the deflagration-to-detonation transition occurs. A strategy is developed for bringing the location of the plasma near the tube wall and, thus, reducing the presence of the electrodes in the combustion tube as well as presenting a configuration in which cooling of the electrodes is viable for practical applications. Time-of-flight measurements were used in combination with energy deposition measurements and high-speed OH*-chemiluminescence imagery to investigate the flame acceleration process. For stoichiometric hydrogen–air flames, successful transition to detonation was achieved by applying a burst of 110 pulses at 100 kHz, with energies as low as 10 mJ per pulse. This was also achieved when plasma discharges were applied in the vicinity of the wall. Two enhancement mechanisms for flame acceleration were identified. The essential role of shock–flame interaction was established as being the main mechanism for flame acceleration when the discharges are located near the wall. This work presents an effective alternative that allows for NRP discharges to be applied near the wall while successfully maintaining a promising success rate for detonation transition.
dc.description.sponsorshipThis work is supported by the King Abdullah University of Science and Technology, through the baseline fund BAS/1/1396-01-01.
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S1540748920304958
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Proceedings of the Combustion Institute. 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 Proceedings of the Combustion Institute, [, , (2020-09-18)] DOI: 10.1016/j.proci.2020.06.369 . © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleEffect of the plasma location on the deflagration-to-detonation transition of a hydrogen–air flame enhanced by nanosecond repetitively pulsed discharges
dc.typeArticle
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalProceedings of the Combustion Institute
dc.rights.embargodate2022-09-18
dc.eprint.versionPost-print
kaust.personGray, Joshua A.T.
kaust.personLacoste, Deanna
kaust.grant.numberBAS/1/1396-01-01
dc.date.accepted2020-06-30
refterms.dateFOA2020-10-01T05:44:21Z
dc.date.published-online2020-09-18
dc.date.published-print2020-09


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