Experimental investigation on momentumless wake and its application in reduction of unsteady stator-rotor interaction
Interaction ow always occurs in the aero engine, multi-stage compressor and turbine, re- duction of unsteady stator-rotor interaction becomes the aim of researchers. In this paper, a developed plate stator model was studied. First, the mean velocity profiles have been measured in the wake of the single stator with and without mass injection through TEB using HWA (Hotwire Anemometers); four wake characteristics have been gained through momentum thicknesses judgments: pure wake, weak wake, momentumless wake, jet. Through the results, the spreading characteristic of important wake characteristics, such as, velocity profile, velocity frequency spectra and wake width had been gained. Then a PIV (Particle Image Velocimetry) experiment investigation was performed to assess the effects of momentumless wake to a low pressure axial rotor. The results show that the momen- tumless wake makes the inlet ow of the rotor more uniform and improves the inlet ow angle of the rotor.
TEB (trailing edge blowing) wake momentumless wake HWA PIV stator-rotor interaction
Y.D.Wu X.C.Zhu Z.H.Du
School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China
国际会议
The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)
上海
英文
2007-08-15（万方平台首次上网日期，不代表论文的发表时间）