Radiation extinction limit of counterflow premixed lean methane-air flames

Hongsheng Guo, Yiguang Ju, Kaoru Maruta, Takashi Niioka, Fengshan Liu

研究成果: Article査読

95 被引用数 (Scopus)

抄録

The application of the laminar flamelet concept to turbulent flame modeling requires a detailed understanding of stretched laminar flames. In this study, we used numerical methods, including arc-length continuation, to simulate the extinction characteristics of counterflow premixed fuel-lean, methane air flames. Attention was primarily paid to the effect of radiative heat loss on the extinction characteristics of these flames. The results show that at medium to low values of the stretch rate, the radiative heat loss has a particularly strong impact on the counterflow premixed fuel-lean, methane- air flames. It was also found that, in addition to the stretch extinction limit at a high stretch rate, there exits a radiation extinction limit at a low stretch rate. Furthermore, the relationship between these two extinction limits and the equivalence ratio is obtained.

本文言語English
ページ(範囲)639-646
ページ数8
ジャーナルCombustion and Flame
109
4
DOI
出版ステータスPublished - 1997 6月

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 燃料技術
  • エネルギー工学および電力技術
  • 物理学および天文学(全般)

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