Calculation and analysis of the mobility and diffusion coefficient of thermal electrons in methane/air premixed flames

Handle URI:
http://hdl.handle.net/10754/562441
Title:
Calculation and analysis of the mobility and diffusion coefficient of thermal electrons in methane/air premixed flames
Authors:
Bisetti, Fabrizio ( 0000-0001-5162-7805 ) ; El Morsli, Mbark
Abstract:
Simulations of ion and electron transport in flames routinely adopt plasma fluid models, which require transport coefficients to compute the mass flux of charged species. In this work, the mobility and diffusion coefficient of thermal electrons in atmospheric premixed methane/air flames are calculated and analyzed. The electron mobility is highest in the unburnt region, decreasing more than threefold across the flame due to mixture composition effects related to the presence of water vapor. Mobility is found to be largely independent of equivalence ratio and approximately equal to 0.4m 2V -1s -1 in the reaction zone and burnt region. The methodology and results presented enable accurate and computationally inexpensive calculations of transport properties of thermal electrons for use in numerical simulations of charged species transport in flames. © 2012 The Combustion Institute.
KAUST Department:
Clean Combustion Research Center; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Reactive Flow Modeling Laboratory (RFML)
Publisher:
Elsevier BV
Journal:
Combustion and Flame
Issue Date:
Dec-2012
DOI:
10.1016/j.combustflame.2012.08.002
Type:
Article
ISSN:
00102180
Sponsors:
This work was supported by two Academic Excellence Alliance (AEA) Grants awarded by the KAUST Office of Competitive Research Funds under the titles "Electromagnetically-enhanced combustion" and "Tracking uncertainty in computational modeling of reactive systems". The authors would like to thank the two anonymous reviewers for their insightful comments and suggestions.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorBisetti, Fabrizioen
dc.contributor.authorEl Morsli, Mbarken
dc.date.accessioned2015-08-03T10:38:19Zen
dc.date.available2015-08-03T10:38:19Zen
dc.date.issued2012-12en
dc.identifier.issn00102180en
dc.identifier.doi10.1016/j.combustflame.2012.08.002en
dc.identifier.urihttp://hdl.handle.net/10754/562441en
dc.description.abstractSimulations of ion and electron transport in flames routinely adopt plasma fluid models, which require transport coefficients to compute the mass flux of charged species. In this work, the mobility and diffusion coefficient of thermal electrons in atmospheric premixed methane/air flames are calculated and analyzed. The electron mobility is highest in the unburnt region, decreasing more than threefold across the flame due to mixture composition effects related to the presence of water vapor. Mobility is found to be largely independent of equivalence ratio and approximately equal to 0.4m 2V -1s -1 in the reaction zone and burnt region. The methodology and results presented enable accurate and computationally inexpensive calculations of transport properties of thermal electrons for use in numerical simulations of charged species transport in flames. © 2012 The Combustion Institute.en
dc.description.sponsorshipThis work was supported by two Academic Excellence Alliance (AEA) Grants awarded by the KAUST Office of Competitive Research Funds under the titles "Electromagnetically-enhanced combustion" and "Tracking uncertainty in computational modeling of reactive systems". The authors would like to thank the two anonymous reviewers for their insightful comments and suggestions.en
dc.publisherElsevier BVen
dc.subjectDiffusion coefficienten
dc.subjectMobilityen
dc.subjectPremixed flamesen
dc.subjectThermal electronsen
dc.titleCalculation and analysis of the mobility and diffusion coefficient of thermal electrons in methane/air premixed flamesen
dc.typeArticleen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentReactive Flow Modeling Laboratory (RFML)en
dc.identifier.journalCombustion and Flameen
kaust.authorBisetti, Fabrizioen
kaust.authorEl Morsli, Mbarken
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.