The effects of flame stretch on supported flame in stratified mixture

Toshiaki Kitagawa, Hiroyuki Kido, Kyu Sung Kim, Nozomu Nakamura, Masaya Aishima

Research output: Contribution to journalArticlepeer-review


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 counterflow 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.

Original languageEnglish
Pages (from-to)2191-2196
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number696
Publication statusPublished - Aug 2004

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering


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