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dc.contributor.authorKabbaj, Narjisse
dc.date.accessioned2023-11-22T06:09:40Z
dc.date.available2023-11-22T06:09:40Z
dc.date.issued2022-11-21
dc.identifier.urihttp://hdl.handle.net/20.500.14131/1134
dc.description.abstractNanosecond repetitively pulsed (NRP) discharges are a promising technique to enhance combustion efficiency and control. Numerical studies are essential to improve the understanding of complex plasma-combustion interaction. Limited by the prohibitive computational cost of fully coupled detailed plasma mechanism and combustion chemistry, a phenomenological model taken from literature is further developed to study the behavior of a laminar methane-air flame under NRP discharges. The phenomenological model focuses on two channels through which the electric energy is deposited: 1) the ultrafast heating and ultrafast dissociation of O2 coming from the relaxation of electronically excited N2; and 2) the slow gas heating coming from the relaxation of vibrational states of N2. The energy fraction deposited to these two channels is governed by the reduced electric field (E/N) which cannot be accurately predicted without resolving ion transport. Electric field is instead determined by solving the static poisson equation between two pin electrodes with three tested geometries. The predicted flame displacement under plasma qualitatively matches the experimental result. The roles played by chemical and thermal effects are strongly dependent on the E/N profile. Higher prediction of E/N magnitude at the preheating zone results in stronger dissociation effect and modifies the flame morphology more than what a lower E/N prediction concludes.en_US
dc.description.sponsorshipKAUSTen_US
dc.publisherAPSen_US
dc.subjectNanosecond repetitively pulsed (NRP) dischargesen_US
dc.subjectPlasma-combustion interactionen_US
dc.subjectPhenomenological modelen_US
dc.subjectMethane-air flameen_US
dc.subjectReduced electric field (E/N)en_US
dc.title75th Annual Meeting of the Division of Fluid Dynamicsen_US
dc.contributor.researcherExternal Collaborationen_US
dc.contributor.labEnergy Laben_US
dc.subject.KSAENERGYen_US
dc.contributor.ugstudent0en_US
dc.contributor.alumnae0en_US
dc.title.projectImpact of nanosecond repetitively pulsed discharges on a laminar methane-air flameen_US
dc.source.indexScopusen_US
dc.contributor.departmentElectrical and Computer Engineeringen_US
dc.contributor.pgstudent0en_US
dc.contributor.firstauthorXiao, Shao
dc.conference.locationIndiana Convention Center, Indianapolis, Indiana, USAen_US
dc.conference.name75th Annual Meeting of the Division of Fluid Dynamicsen_US
dc.conference.date2022-11-21


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