Application of unsteady vortex lift in turbomachinery

Lin Du, Xiaofeng Sun, Vigor Yang

研究成果: Conference contribution

摘要

The Weis-Fogh mechansim is quite attractive because it can generate very high unsteady lift. It is indicated that the high unsteady lift is related to the attached vortex around the leading edge and trailing edge of wing/airfoil, which is caused by the relative motion. In the present work, the numerical results prove that, when the axial spacing is reduced, the interaction between rotor/stator can generate unsteady vortex around the rotor blades, and the rotor lift coefficient is increased, which improves the performance of stage. Besides reducing the axial spacing, the rotor/controllable stator system is proposed to apply vortex lift in turbomachinery. It is indicated that unsteady lift coefficient is increased greatly by the relative motion of rotor/controllable stator and the unsteady vortex is very important.

原文English
主出版物標題48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012
出版狀態Published - 2012
事件48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012 - Atlanta, GA, United States
持續時間: 2012 七月 302012 八月 1

出版系列

名字48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012

Other

Other48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012
國家/地區United States
城市Atlanta, GA
期間12-07-3012-08-01

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術
  • 航空工程
  • 控制與系統工程
  • 電氣與電子工程
  • 機械工業

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