二次元衝突噴流中に設置した弾性支持円柱が及ぼす流れ場および熱伝達への影響

• 羽田 喜昭

• 土屋 良明

• 倉澤 英夫

• 中部 主敬

• 鈴木 健二郎

書誌事項

タイトル別名

• Flow-Field and Heat Transfer of Two-Dimensional Impinging Jet Disturbed by an Elastically-Suspended Circular Cylinder.
• 2ジゲン ショウトツ フンリュウ チュウ ニ セッチ シタ ダンセイ シジ エンチュウ ガ オヨボス ナガレバ オヨビ ネツ デンタツ エ ノ エイキョウ

抄録

One of the circular cylinders with several diameters was elastically suspended with springs in the jet impingement region between a jet slot and a heat transfer target plate. The slot-to-plate distance H was kept constant to be 3 or 5 times of the slot width, h=15mm. The Reynolds number was fixed at 10000, being exceptionally 5000 in the case of flow visualization. Periodical swinging motion of the cylinder across the jet was observed because of the cylinder vibration self-induced with the jet flwo. It was found that this vibration has direct effects on the characteristics of the flow and heat transfer around the stagnation region. The ensemble-averaged values of velocity and its fluctuation depend on the cylinder diameter and the impinging distance. The local Nusselt number in the case of H/h=3 with the vibrating cylinder of the smallest diameter D=4mm was increased up to 1.15 times of the Nusselt number without the cylinder. The interesting patterns of intermittency function defined together with threshold levels of turbulence intensity were observed in the above case.

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 66 (644), 1176-1183, 2000

  一般社団法人 日本機械学会

キーワード

• Flow Visualization

詳細情報

• CRID: 1390001206184817280
• NII論文ID: 130004223815
• NII論文ID: 110002393014
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.66.1176
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 5362335
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5362335
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/66/644/66_644_1176/_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