Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation

Handle URI:
http://hdl.handle.net/10754/626959
Title:
Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation
Authors:
Manias, Dimitrios; Tingas, Alexandros-Efstathios; Hernandez Perez, Francisco E.; Im, Hong G. ( 0000-0001-7080-1266 ) ; Galassi, Riccardo Malpica; Ciottoli, Pietro Paolo; Valorani, Mauro
Abstract:
The dynamics and structure of two turbulent H2/air premixed flames, representative of the corrugated flamelet (Case 1) and thin reaction zone (Case 2) regimes, are analyzed and compared, using the computational singular perturbation (CSP) tools, by incorporating the tangential stretch rate (TSR) approach. First, the analysis is applied to a laminar premixed H2/air flame for reference. Then, a two-dimensional (2D) slice of Case 1 is studied at three time steps, followed by the comparison between two representative 2D slices of Case 1 and Case 2, respectively. Last, statistical analysis is performed on the full three-dimensional domain for the two cases. The dominant reaction and transport processes are identified for each case and the overall role of kinetics/transport is determined.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center; King Abdullah University of Science and Technology (KAUST), Thuwal-Jeddah, Saudi Arabia.
Citation:
Manias D, Tingas A-E, Hernandez Perez FE, Im HG, Galassi RM, et al. (2018) Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation. 2018 AIAA Aerospace Sciences Meeting. Available: http://dx.doi.org/10.2514/6.2018-0364.
Publisher:
American Institute of Aeronautics and Astronautics
Journal:
2018 AIAA Aerospace Sciences Meeting
Issue Date:
8-Jan-2018
DOI:
10.2514/6.2018-0364
Type:
Conference Paper
Sponsors:
This work was sponsored by competitive research funding from King Abdullah University of Science and Technology (KAUST). MV also acknowledges the support of the Italian Ministry of University and Research (MIUR).
Additional Links:
https://arc.aiaa.org/doi/10.2514/6.2018-0364
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

Full metadata record

DC FieldValue Language
dc.contributor.authorManias, Dimitriosen
dc.contributor.authorTingas, Alexandros-Efstathiosen
dc.contributor.authorHernandez Perez, Francisco E.en
dc.contributor.authorIm, Hong G.en
dc.contributor.authorGalassi, Riccardo Malpicaen
dc.contributor.authorCiottoli, Pietro Paoloen
dc.contributor.authorValorani, Mauroen
dc.date.accessioned2018-02-01T07:24:59Z-
dc.date.available2018-02-01T07:24:59Z-
dc.date.issued2018-01-08en
dc.identifier.citationManias D, Tingas A-E, Hernandez Perez FE, Im HG, Galassi RM, et al. (2018) Analysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbation. 2018 AIAA Aerospace Sciences Meeting. Available: http://dx.doi.org/10.2514/6.2018-0364.en
dc.identifier.doi10.2514/6.2018-0364en
dc.identifier.urihttp://hdl.handle.net/10754/626959-
dc.description.abstractThe dynamics and structure of two turbulent H2/air premixed flames, representative of the corrugated flamelet (Case 1) and thin reaction zone (Case 2) regimes, are analyzed and compared, using the computational singular perturbation (CSP) tools, by incorporating the tangential stretch rate (TSR) approach. First, the analysis is applied to a laminar premixed H2/air flame for reference. Then, a two-dimensional (2D) slice of Case 1 is studied at three time steps, followed by the comparison between two representative 2D slices of Case 1 and Case 2, respectively. Last, statistical analysis is performed on the full three-dimensional domain for the two cases. The dominant reaction and transport processes are identified for each case and the overall role of kinetics/transport is determined.en
dc.description.sponsorshipThis work was sponsored by competitive research funding from King Abdullah University of Science and Technology (KAUST). MV also acknowledges the support of the Italian Ministry of University and Research (MIUR).en
dc.publisherAmerican Institute of Aeronautics and Astronauticsen
dc.relation.urlhttps://arc.aiaa.org/doi/10.2514/6.2018-0364en
dc.titleAnalysis of Hydrogen/Air Turbulent Premixed Flames at Different Karlovitz Numbers Using Computational Singular Perturbationen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentClean Combustion Research Centeren
dc.contributor.departmentKing Abdullah University of Science and Technology (KAUST), Thuwal-Jeddah, Saudi Arabia.en
dc.identifier.journal2018 AIAA Aerospace Sciences Meetingen
dc.contributor.institutionSapienza University of Rome, Italy.en
kaust.authorManias, Dimitriosen
kaust.authorTingas, Alexandros-Efstathiosen
kaust.authorHernandez Perez, Francisco E.en
kaust.authorIm, Hong G.en
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