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  • 标题:Leading-Edge Velocities and Lifted Methane Jet Flame Stability
  • 本地全文:下载
  • 作者:W. Wang ; K. M. Lyons
  • 期刊名称:Journal of Cancer Epidemiology
  • 印刷版ISSN:1687-8558
  • 电子版ISSN:1687-8566
  • 出版年度:2008
  • 卷号:2008
  • DOI:10.1155/2010/612892
  • 出版社:Hindawi Publishing Corporation
  • 摘要:

    Current interest exists in understanding reaction-zone dynamics and mechanisms with respect to how they counterpropagate against incoming reactants. Images of flame position and flow-field morphology are presented from flame chemiluminescence and particle image velocimetry (PIV) measurements. In the present study, PIV experiments were carried out to measure the methane jet lifted-flame flow-field velocities in the vicinity of the flame leading edge. Specifically, velocity fields within the high-temperature zone were examined in detail, which complements previous studies, whose prime focus is the flow-field upstream of the high-temperature boundary. PIV data is used not only to determine the velocities, but, along with chemiluminescence images, to also indicate the approximate location of the reaction zone (further supported by/through the leading-edge flame velocity distributions). The velocity results indirectly support the concept that the flame is anchored primarily through the mechanism of partially premixed flame propagation.

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