310 環状吸込流を付加した円形自由噴流の流動特性

DOI

書誌事項

タイトル別名
  • Flow Characteristics on Circular Free Jet Added Annular Suction Flow
  • Effect of Jet Velocity
  • 噴流速度の影響

抄録

The effects of the jet velocity on the flow characteristics of the circular free jet added the annular suction flow were examined, provided that the velocity ratio of the suction velocity to the jet velocity is the same. The two-dimensional flow field was measured by PIV, and the pass frequency of vortices was analyzed by FFT analyzer using a hot wire. As a result, it was found that the time mean velocity and turbulent statistical values of the flow field in the vicinity of the exit of the pipe are approximately the same in all cases of the jet velocity. Therefore, it was clarified that the velocity ratio is one of parameter that dominates the diffusion phenomenon. It was found that the pass frequency of the vortices is observed clearly in the velocity ratio more than 0.84. As the Strouhal number shows almost a fixed value in all cases of the jet velocity, similarity of the unsteady flow was also confirmed.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001204620286464
  • NII論文ID
    130003649067
  • DOI
    10.3154/jvs.19.supplement1_235
  • ISSN
    1884037X
    09164731
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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