Three-dimensional structure of separated and vortical flow inahalf-ducted propeller fan

J. H. Jeong, K. Takahashi, K. Iwakiri, M. Furukawa

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

2 被引用数 (Scopus)

抄録

Three-dimensional structure of separated and vortical flow field has been investigated by numerical analysis on a half-ducted propeller fan. Complicated flow phenomena in the fan were captured by the Reynolds-averaged Navier-Stokes flow simulation (RANS) and a vortex structure identification technique based on the critical point theory. The flow field around the fan rotor is dominated by the tip leakage vortex. The tip leakage vortex starts to be formed near the blade mid-chord and grows nearly in the tangential direction without vortex breakdown. In the rotor passage, the high vorticity flow around the tip leakage vortex core is impinging on the pressure surface of the adjacent blade. It is expected that the behavior of the tip leakage vortex plays a major role in characteristics of the fan noise.

本文言語英語
ホスト出版物のタイトル2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
ページ1005-1010
ページ数6
PART B
DOI
出版ステータス出版済み - 12 1 2007
イベント2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 - San Diego, CA, 米国
継続期間: 7 30 20078 2 2007

出版物シリーズ

名前2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
番号PART B
2 FORA

その他

その他2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
国/地域米国
CitySan Diego, CA
Period7/30/078/2/07

All Science Journal Classification (ASJC) codes

  • 機械工学
  • 凝縮系物理学

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