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    Flame Quenching Dynamics of High Velocity Flames in Rectangular Cross-section Channels

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    AIAA-Ariff-2017-0823.pdf
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    Type
    Conference Paper
    Authors
    Mahuthannan, Ariff Magdoom
    Lacoste, Deanna cc
    Damazo, Jason
    Kwon, Eddie
    Roberts, William L. cc
    KAUST Department
    Clean Combustion Research Center
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017-01-05
    Permanent link to this record
    http://hdl.handle.net/10754/625560
    
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    Abstract
    Understanding flame quenching for different conditions is necessary to develop safety devices like flame arrestors. In practical applications, the speed of a deflagration in the lab-fixed reference frame will be a strong function of the geometry through which the deflagration propagates. This study reports on the effect of the flame speed, at the entrance of a quenching section, on the quenching distance. A 2D rectangular channel joining two main spherical vessels is considered for studying this effect. Two different velocity regimes are investigated and referred to as configurations A, and B. For configuration A, the velocity of the flame is 20 m/s, while it is about 100 m/s for configuration B. Methane-air stoichiometric mixtures at 1 bar and 298 K are used. Simultaneous dynamic pressure measurements along with schlieren imaging are used to analyze the quenching of the flame. Risk assessment of re-ignition is also reported and analyzed.
    Citation
    Mahuthannan AM, Lacoste DA, Damazo J, Kwon E, Roberts WL (2017) Flame Quenching Dynamics of High Velocity Flames in Rectangular Cross-section Channels. 55th AIAA Aerospace Sciences Meeting. Available: http://dx.doi.org/10.2514/6.2017-0823.
    Sponsors
    The research reported in this publication was supported partly by the Boeing Company and partly by Center Competitive Funding from King Abdullah University of Science and Technology (KAUST).
    Publisher
    American Institute of Aeronautics and Astronautics (AIAA)
    Journal
    55th AIAA Aerospace Sciences Meeting
    Conference/Event name
    55th AIAA Aerospace Sciences Meeting
    DOI
    10.2514/6.2017-0823
    Additional Links
    https://arc.aiaa.org/doi/10.2514/6.2017-0823
    ae974a485f413a2113503eed53cd6c53
    10.2514/6.2017-0823
    Scopus Count
    Collections
    Conference Papers; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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