Unsteady Aerodynamic Forces Caused by Oscillation of Blades in Multistage Bladerows

• KUBO Ayumi

  Department of Aeronautics and Astronautics, Kyushu University

• NAMBA Masanobu

  Department of Aeronautics and Astronautics, Kyushu University

抄録

The unsteady lifting surface theory for a model composed of five bladerows is developed to predict unsteady aerodynamic forces on oscillating blades of aerodynamically coupled multistage annular bladerows. The theory is formulated to calculate generalized aerodynamic forces which appear in Lagrange’s equations of blade motions, so that it can be used as the aerodynamic tool for the inter-row coupling flutter analysis of multistage bladerows. Numerical studies were also conducted to investigate the mutual aerodynamic influences among bladerows. The simultaneous effects of co-rotating upstream and downstream bladerows located at next to the next position significantly modify the aerodynamic response of oscillating blades. The aerodynamic force induced by the oscillating bladerow is not very small even on the bladerows remoter than the next-to-the-next bladerow.

収録刊行物

• TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

  TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 53 (181), 215-222, 2010

  一般社団法人 日本航空宇宙学会

キーワード

• Cascade Flutter
• Multistage Bladerows
• Rotor-Stator Interaction
• Unsteady Aerodynamics
• Lifting Surface Theory

詳細情報

• CRID: 1390282679056102912
• NII論文ID: 10027680900
• NII書誌ID: AA0086707X
• DOI: 10.2322/tjsass.53.215
• ISSN: 21894205
• ISSN: 05493811
• NDL書誌ID: 10883388
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10883388
• Web Site: https://www.jstage.jst.go.jp/article/tjsass/53/181/53_181_215/_pdf
• 本文言語コード: en
• 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