流体机械2011，Vol.39Issue(3)：10-17,8.DOI:10.3969/j.issn.1005-0329.2011.03.003
压气机转子叶片附面层抽吸的参数化研究
Parameterized Study of Bleeding Flow Control on the Blade Surface of Transonic Compressor Rotor
摘要
Abstract
At off-design flow condition,the effects of bleeding position,bleeding rate and bleeding hole number on the perform ance of transonic compressor rotor are investigated numerically by solving three-dimensional viscous Reynolds-averaged Navier- Stokes equations. The flow separation and shockwave structure occurred on the blade suction surface with and without bleeding flow are also revealed. The studied results show that the reasonable distribution of bleeding flow can effectively control the shock wave position and change the shockwave structure. The flow separation caused by the shockwave in the flow passage is delayed. The bleeding rate determines directly the performance of transonic compressor rotor. Because of bleeding, low-energy fluid in the blade boundary layer is removed and the fluidic kinetic energy near the blade suction side is increased. The mainstream fluid with higher velocity is closed to the blade surface. Consequently, the flow capacity in the flow passage is improved. At the same time, the complicated negative flow vortex structure is suppressed or eliminated evidently.关键词
抽吸流/激波结构/分离流动/流动控制/数值模拟分类
航空航天引用本文复制引用
刘小民,高健,王星..压气机转子叶片附面层抽吸的参数化研究[J].流体机械,2011,39(3):10-17,8.基金项目
陕西省自然科学基金资助项目(SJ08-ZT06) （SJ08-ZT06）
