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    A novel augmentor that does not use flame holders to stabilize the combustion process

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    115087_AGE_FINALREPORT.pdf (1.462Mb)
    Date
    2012-06
    Author
    Zinn, Benjamin T.
    Lubarsky, Eugene
    Neumeier, Yedidia
    Williams, Aimee
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    Abstract
    This report describes the process of determining auto-ignition delay of the liquid Jet-A aviation fuel injected in a cross flow of vitiated air. Auto-ignition delays were measured by processing of the time-averaged chemiluminescence images for a range of temperatures from 898-1028K, vitiated oxygen percentages from 9.3% to 12.2%, velocities from 80 – 140 m/s and global Jet-A to, vitiated-air mixture equivalence ratios from φ=0.3 to φ=1.5. It was found that ignition delay increases exponentially from one to ten milliseconds with inverse temperature variation and are more scattered at lower temperatures. The data obtained in this study reveals delay times much shorter than those measured in most of other studies, but with same character of dependence upon the temperature of the flow.
    URI
    http://hdl.handle.net/1853/61015
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    • Office of Sponsored Programs Research Reports [6439]
    • School of Aerospace Engineering OSP Research Reports [347]

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