0524 PIV計測と数値解析による集水装置を有する軸流水車の流れ場

• 佐藤 元紀

  茨城大院

• 西 泰行

  茨城大

• 稲垣 照美

  茨城大

• 李 艶栄

  茨城大

• 平間 壮

  茨城大院

• 菊池 伯夫

  茨城製作所

書誌事項

タイトル別名

• 0524 The Flow Field of an Axial Flow Hydraulic Turbine with a Collection Device Based on PIV Measurement and Numerical Analysis

抄録

We have proposed an axial flow hydraulic turbine with a collection device, using water flow energy of open channel. In this study, we investigate the flow field around the hydraulic turbine by numerical analysis in consideration of free surface and PIV measurement with water tunnel. As the result, it showed the validity of the analysis because the calculated values and experimental values were in good agreement. There are the formations of large-scale vortex behind the brim of hydraulic turbine. In addition, there are separation vortex regions near the inner wall of the collection device. The separation vortex regions become larger with increasing rotational speed. Therefore, the diffuser pressure recovery decreases and inlet velocity ratio becomes lower with increasing rotational speed.

収録刊行物

• 流体工学部門講演会講演論文集

  流体工学部門講演会講演論文集 2015 (0), _0524-1_-_0524-4_, 2015

  一般社団法人 日本機械学会

キーワード

• Hydraulic Turbine
• Collection Device
• Free Surface
• PIV
• Numerical Analysis

詳細情報

• CRID: 1390001205882560768
• NII論文ID: 110010047143
• DOI: 10.1299/jsmefed.2015._0524-1_
• ISSN: 24242896
• Web Site: https://www.jstage.jst.go.jp/article/jsmefed/2015/0/2015__0524-1_/_pdf
• 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