乱流拡散火炎の瞬時二次元温度分布測定

• 小宮山 正治

• 加藤 宏行

• 高城 敏美

書誌事項

タイトル別名

• Measurements of Instantaneous Two-Dimensional Temperature Profiles in Turbulent Diffusion Flames.
• ランリュウ カクサン カエン ノ シュンジ 2ジゲン オンド ブンプ ソクテイ

抄録

Instantaneous planar temperature profiles were obtained by a Rayleigh scattering method using a CCD camera with an image intensifier which has 512×512 pixels and a Nd : YAG laser. The method was applied to nitrogen-diluted hydrogen (H₂ 30%+N₂ 70%) diffusion flames with various degrees of turbulence to investigate spatial features of instantaneous flame temperature in the diffusion flames. The results obtained are as follows. (1) The instantaneous maximum temperature tends to decrease when the Reynolds number or the average fuel velocity at the nozzle exit increases. (2) Temperature fluctuation appears at the inner region of the flame at low fuel velocity, which increases at inner and outer region of the flame with increase of fuel velocity. Temperature fluctuations of large spatial scales are predominant in the fames. (3) The high-temperature region is intermittent in a flame near extinction.

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 62 (593), 361-367, 1996

  一般社団法人 日本機械学会

キーワード

• Instantaneous Two-Dimensional Temperature Profiles

詳細情報

• CRID: 1390282680870402304
• NII論文ID: 130004222037
• NII論文ID: 110002403369
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.62.361
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 3916394
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3916394
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/62/593/62_593_361/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可