論文

査読有り
2018年3月4日

Geometrical Effects of a Narrow Channel on Flame Spread in an Opposed Flow

Combustion Science and Technology
  • Tsuneyoshi Matsuoka
  • ,
  • Kentaro Nakashima
  • ,
  • Takuya Yamazaki
  • ,
  • Yuji Nakamura

190
3
開始ページ
408
終了ページ
423
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1080/00102202.2017.1394848
出版者・発行元
Taylor and Francis Inc.

Geometrical effects on the flame spread over thermally thick combustibles in a narrow channel were experimentally investigated. Two series of experiments were conducted with two kinds of fuel geometry to form a narrow channel: parallel plates and cylinder. Both channels were made of polymethyl methacrylate, which also served as a combustible specimen, and the channel height varied from 1 mm to 10 mm. An oxidizer flow was supplied at specified velocities of 30 cm/s or 90 cm/s. The flame spread through the channels in the direction opposite to the oxidizer flow was observed. Although the spread rates had similar trends, there was a slight difference between their values at the same conditions. The effective velocity and the excess-volume ratio were evaluated to explain the geometrical effects. Accordingly, it is suggested that the variation of the velocity profile due to the channel geometry is the main factor affecting the spread rate.

リンク情報
DOI
https://doi.org/10.1080/00102202.2017.1394848
URL
https://www.tandfonline.com/doi/pdf/10.1080/00102202.2017.1394848
ID情報
  • DOI : 10.1080/00102202.2017.1394848
  • ISSN : 1563-521X
  • ISSN : 0010-2202
  • eISSN : 1563-521X
  • SCOPUS ID : 85033670665

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