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

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    Type
    Conference Paper
    Authors
    Manias, Dimitrios
    Tingas, Alexandros
    Hernandez Perez, Francisco
    Im, Hong G. cc
    Galassi, Riccardo Malpica
    Ciottoli, Pietro Paolo
    Valorani, Mauro cc
    KAUST Department
    Clean Combustion Research Center
    Computational Reacting Flow Laboratory (CRFL)
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2018-01-07
    Online Publication Date
    2018-01-07
    Print Publication Date
    2018-01-08
    Permanent link to this record
    http://hdl.handle.net/10754/626959
    
    Metadata
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    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.
    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.
    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).
    Publisher
    American Institute of Aeronautics and Astronautics (AIAA)
    Journal
    2018 AIAA Aerospace Sciences Meeting
    DOI
    10.2514/6.2018-0364
    Additional Links
    https://arc.aiaa.org/doi/10.2514/6.2018-0364
    ae974a485f413a2113503eed53cd6c53
    10.2514/6.2018-0364
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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