環状吸込流を付加した円形衝突噴流の流動および伝熱特性　　（吸込管の張出し長さによる吸込流量の低減化）

• 山下 英成

• 福原 稔

• 中村 一未

• 西薗 久幸

書誌事項

タイトル別名

• Flow and Heat Transfer Characteristics of Circular Impinging Jet Accompanying Annular Suction Flow (Reduction of Suction Flow Rate by Excess Length of Suction Pipe)
• カンジョウ スイコミリュウ オ フカ シタ エンケイ ショウトツ フンリュウ ノ リュウドウ オヨビ デンネツ トクセイ スイコミカン ノ ハリダシ ナガサ ニ ヨル スイコミ リュウリョウ ノ テイゲンカ

抄録

As one of the methods for reducing the suction flow rate in order to satisfy the operating condition as one blower, it was proposed to mount the excess length of the suction pipe from the injection pipe. The experiments were carried out to clarify the effects of various excess length of the suction pipe on the flow and heat transfer characteristics of a circular impinging jet accompanying an annular suction flow. As a result, it is found that the higher Nusselt number is obtained at the smaller suction flow rate adding the excess length of the suction pipe. Considering the power loss based on the pressure loss in the suction pipe, it is shown that the optimum excess length of the suction pipe is obtained as a half of the inner diameter of the injection pipe at given experimental conditions. In addition, the counter flow which seems to be an important factor increasing of the fluctuating velocity is observed inside of the suction pipe using Particle Image Velocimetry (PIV).

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 (684), 1830-1837, 2003

  一般社団法人 日本機械学会

キーワード

• Heat Transfer Enhancement

詳細情報

• CRID: 1390001206261714048
• NII論文ID: 110002388268
• NII論文ID: 130004224961
• NII書誌ID: AN00187441
• DOI: 10.1299/kikaib.69.1830
• ISSN: 18848346
• ISSN: 03875016
• NDL書誌ID: 6687870
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6687870
• Web Site: http://www.jstage.jst.go.jp/article/kikaib1979/69/684/69_684_1830/_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