超高負荷直線タービン翼列内の流れに関する研究 : 入射角および翼端間隙の影響

• 石井 公二

書誌事項

タイトル別名

• INVESTIGATION OF FLOW IN ULTRA-HIGHLY LOADED LINEAR TURBINE CASCADE : EFFECTS OF INCIDENCE ANGLE AND TIP-CLEARANCE-

抄録

type:Article

An increase of turbine blade loading by the increase of turning angle makes it possible to reduce the numbers of the blades and the stages, and consequently to decrease the size and the weight of gas turbine. However, the aerodynamic performance of turbine cascade may be decreased significantly by the strengthened secondary flow. In this study, the oil-flow visualization, the blade surface static pressure measurements and the detailed internal flow measurements by using the 5-hole Pitot tube were performed for the ultra-highly loaded turbine cascade with turning angle of 160 degree in order to clarify the effects of incidence angle and the existence of tip-clearance on the flow in the cascade. The present experimental results showed that the increase of incidence angle strengths the horseshoe vortex and passage vortex, and expands the high loss region at the downstream of turbine cascade, but does not so influence the formation of leakage vortex.

収録刊行物

• 法政大学大学院紀要. 理工学・工学研究科編

  法政大学大学院紀要. 理工学・工学研究科編 55 1-7, 2014-03-24

  法政大学大学院理工学・工学研究科

キーワード

• Turbine Cascade
• High-Loading
• Incidence Angle
• Tip-clearance

詳細情報

• CRID: 1390572174784047744
• NII論文ID: 120005467016
• NII書誌ID: AA12677220
• ISSN: 21879923
• DOI: 10.15002/00009912
• Web Site: http://hdl.handle.net/10114/9157
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles