Effects of radiation on spray flame characteristics and soot formation

Hiroaki Watanabe, Ryoichi Kurose, Satoru Komori, Heinz Pitsch

研究成果: Contribution to journalArticle査読

63 被引用数 (Scopus)

抄録

Two-dimensional numerical simulations are applied to spray flames formed in a laminar counterflow and the effects of radiation on spray flame characteristics and soot formation are studied. N-Decane (C10H22) is used as the liquid fuel, and the droplet motion is calculated by the Lagrangian method. A single-step global reaction is employed for the combustion reaction model. A kinetically based soot model with a flamelet model is used to predict soot formation. Radiation is taken into account using the discrete ordinate method. The results show that radiation strongly affects the spray flame behavior and soot formation. Without the radiation model, flame temperature and soot volume fraction are greatly overestimated. The soot is formed in the diffusion flame regime, and its radiation emission increases with the increase in the equivalence ratio of the droplet fuel. This trend is in good agreement with that of the luminous flame behavior observed in the experiments.

本文言語英語
ページ(範囲)2-13
ページ数12
ジャーナルCombustion and Flame
152
1-2
DOI
出版ステータス出版済み - 1 2008
外部発表はい

All Science Journal Classification (ASJC) codes

  • 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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