Experimental Study of Bowed-twisted Stators in an Axial Transonic Fan Stage

Bowed-twisted stators with large camber angles have been developed to replace the conventional tandem stators in an axial transonic fan stage working at high subsonic speeds. Experimental study is carried out on both stages with tandem stators and with bowed-twisted stators. Compared to the tandem s...

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Bibliographic Details
Published in:Chinese journal of aeronautics 2009-08, Vol.22 (4), p.364-370
Main Authors: Fu, Chen, Shaobin, Li, Jiexian, Su, Zhongqi, Wang
Format: Article
Language:English
Subjects:
aerodynamic performance
bowed-twisted stator
large camber angle
transonic fan stage
动力学性能
定子
实验
弯扭
跨音速
轴流风扇
轴流风机
高亚音速
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Summary:Bowed-twisted stators with large camber angles have been developed to replace the conventional tandem stators in an axial transonic fan stage working at high subsonic speeds. Experimental study is carried out on both stages with tandem stators and with bowed-twisted stators. Compared to the tandem stators, the bowed-twisted stators change the distribution of the low-energy fluid and the potential high-energy fluid at the compressor outlets, reduce the endwall loss significantly, improve the aerody- namic matching of rotors and stators, and eventually increase the fan stage performances. The aerodynamic performances of the fan stage at different operating points are compared and contrasted. The results show that the transonic fan stage with bowed-twisted stators has better aerodynamic performances. It is thus suggested that the bowed-twisted stators with large camber angles be popularized into the high-loaded transonic fan designs.
ISSN:1000-9361
DOI:10.1016/S1000-9361(08)06112-0