Investigation of Influence of Equivalence Ratio and Flame Stretch on Flame Structure of Methane-Air Counterflow Twin-Premixed Flames by Manipulating Lewis Number

• HAYASHI Naoki

  Nagoya University

• YAMASHITA Hiroshi

  Nagoya University

Bibliographic Information

Other Title

• メタン－空気対向流予混合双子火炎の火炎構造に与える当量比および火炎伸長の影響に関するルイス数操作による検討
• メタン クウキ タイコウリュウ ヨコンゴウ フタゴ カエン ノ カエン コウゾウ ニ アタエル トウリョウヒ オヨビ カエン シンチョウ ノ エイキョウ ニ カンスル ルイススウ ソウサ ニ ヨル ケントウ

Abstract

The methane-air counterflow twin-premixed flame of fuel lean mixture is investigated with chemical kinetics model. For the confirmation of the effect of equivalence ratio and flame stretch rate, the steady counterflow flames, in which the Lewis numbers of each species are fixed from 0.5 to 1.5, in addition to the case of using actual Lewis numbers, are calculated. As a result, when the Lewis number is fixed, the maximum heat release rate is influenced by Lewis number effect and the summation of heat release rate is influenced by the Lewis number and the incomplete combustion. The influences of flame stretch rate on flame structures of the counterflow premixed flame using actual Lewis number are changed in each equivalence ratio. Moreover, the determination of the burning velocity in counterflow premixed flame is investigated.

Journal

• Journal of the Combustion Society of Japan

  Journal of the Combustion Society of Japan 50 (154), 345-352, 2008

  Combustion Society of Japan

Keywords

• Premixed flame
• Counterflow
• Flame stretch
• Lewis number
• Chemical kinetics model
• Numerical simulation

Details

• CRID: 1390001205197316352
• NII Article ID: 10029755041
• NII Book ID: AA11658490
• DOI: 10.20619/jcombsj.50.154_345
• ISSN: 24241687
• ISSN: 13471864
• NDL BIB ID: 9721252
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9721252
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
• Abstract License Flag: Disallowed