回転流中における火炎の安定機構　　水素・空気混合気中に形成される管状火炎の燃焼特性

• 山本 和弘

• 浅井 寛志

• 石塚 悟

• 小沼 義昭

書誌事項

タイトル別名

• Mechanism of Flame Stability in a Rotating Flow. Combustion Characteristics of Tubular Flames in a Hydrogen/Air Mixture.
• カイ テンリュウチュウ ニ オケル カエン ノ アンテイ キコウ スイソ クウ

抄録

The effects of rotation on the stability and structure of tubular flames have been investigated for a lean hydrogen/air mixture, and mechanism of flame stability in a rotating flow has been discussed. Results show that with increasing intensity of rotation, (1) the flame diameter increases, while thickness of the luminous zone decreases, (2) the fuel concentration at the extinction decreanes, i. e., the stable region expands, (3) the radial temperature distribution becomes an M-shaped profiles, and (4) flame temperature T_f increases near extinction. These results are almost the same as those obtained for a methane/air mixture. The mechanism for these phenomena is supposed to be explained with the coupled effects of pressure diffusion and stretch effect. The present experimental results provide very useful information for discussing the flame stability and the transport phenomena in a vortex flow.

収録刊行物

• 日本機械学会論文集Ｂ編

  日本機械学会論文集Ｂ編 64 (624), 2677-2682, 1998

  一般社団法人 日本機械学会

キーワード

• Tubular Flame

詳細情報

• CRID: 1390001205895951872
• NII論文ID: 130004223086
• NII論文ID: 110002397203
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.64.2677
• ISSN: 18848346
• ISSN: 03875016
• HANDLE: 2237/9317
• NDL書誌ID: 4545252
• Web Site: https://nagoya.repo.nii.ac.jp/records/7614
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00031645
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4545252
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/64/624/64_624_2677/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可