非燃焼および燃焼場におけるブラフボディ形スロットを有する二次元噴流の渦構造

• 川原 秀夫

• 西村 龍夫

書誌事項

タイトル別名

• Vortex Structures of Two-Dimensional Jet with a Bluff-Body Slot in Cold and Combusting Flows
• ヒネンショウ オヨビ ネンショウバ ニ オケル ブラフボデーケイ スロット オ ユウスル 2ジゲン フンリュウ ノ ウズ コウゾウ

抄録

A numerical study was performed to examine the vortical structures and oscillatory momentum transport for both cold and combusting flows from a two-dimensional bluff-body slot burner in the transitional recirculating flow. The Reynolds number for the inner slot fuel flow is varied from 10 to 230 at a fixed Reynolds number of 400 for the outer slot air flow. The flame sheet model of infinite chemical reaction and the unity Lewis number are assumed in the simulation for combusting flow. For cold flow, four different types of vortical structures are identified, depending on the Reynolds number for inner slot flow. In particular, there is a strong interaction between the inner slot jet and the wake from the bluff-body at intermediate Reynolds numbers for the inner slot flow, i. e., vortex cross orver. For combusting flow, the wake development from the bluff-body slot is suppressed, due to a large amount of heat release, which remarkably modifies the vortical structure and oscillatory momentum transport, unike cold 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 69 (686), 2368-2375, 2003

  一般社団法人 日本機械学会

キーワード

• Non-Premixed Combustion

詳細情報

• CRID: 1390282681237988608
• NII論文ID: 110002388360
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.69.2368
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 6746003
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6746003
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/69/686/69_686_2368/_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