The flame propagating into the lean region of the stratified mixture below the lower flammability limit was supported by the burned gas behind it. In this study, the effects of the flame stretch on this supported flame was investigated numerically. The supported flame and the burned gas behind it were linked to the counter flow flame configuration of the lean mixture and the hot nitrogen. The results show that the flame stretch deteriorates the reaction of the supported flame. The production of CO and unburned hydrocarbons increases with increasing the flame stretch rate. Moreover, the self-sustaining flame in the flammable range turns into the supported flame by the intense stretch.
|Translated title of the contribution||The Effects of Flame Stretch on Supported Flame in Stratified Mixture|
|Number of pages||6|
|Journal||Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B|
|Publication status||Published - Aug 25 2004|
北川敏明, 城戸裕之, 金奎成, 中村望, & 相嶋匡也 (2004). 成層混合気中の維持火炎に及ぼす火炎伸長の影響. Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 70(696), 2191-2196. http://id.ndl.go.jp/bib/7076471