大弯角扩压叶栅吸力面全域压力分布的PSP实验

高丽敏; 高杰; 王欢; 周强; 刘波

大弯角扩压叶栅吸力面全域压力分布的PSP实验

西北工业大学动力与能源学院,西安 710072

基金项目: 国家自然基金(51076132); 航空基金(2010ZB53014); 西北工业大学基础研究基金; 2010年度新世纪人才计划

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出版历程
- 收稿日期: 2010-09-21
- 修回日期: 2011-06-01
- 刊出日期: 2011-09-28

PSP experiment of global surface pressure distribution on suction surface of compressor cascade with large curved angle

School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 基于自行组建的PSP(pressure sensitive paint)测量系统,采用中国科学院化学研究所PSP,实验测量了来流马赫数分别为0.4和0.5时大弯角扩压叶栅叶片吸力面全域压力分布,并与传统测压技术所得结果进行了比较.研究结果表明:①采用PSP技术测量可以获得叶片表面全域的连续压力分布,具有空间分布率高、定量测量的特点;②叶片中部PSP测量压力值与压力扫描阀结果吻合得非常好,但受到叶片吸力面曲率的影响,叶片前缘与尾缘附近的误差较大,最大误差为4.48%;③随着来流速度的提高,PSP与压力扫描阀之间的误差逐渐减小.
- PSP(pressure sensitive paint)测量技术 /
- 大弯角 /
- 扩压叶栅 /
- 压力分布 /
- 吸力面
Abstract: Based on the home-made PSP (pressure sensitive paint)system and ICCAS's (Institute of Chemistry,Chinese Academy of Sciences) PSP,the pressure distribution on the compressor cascade surface was performed on a subsonic cascade wind-tunnel while the conventional pressure scanner was employed to validate the PSP measurement.Comparison between the PSP and the pressure scanner indicates: (1) Pressure distribution on the suction surface of with use of PSP is quantitative,continuous and global,and that with use of pressure scanner is discrete and limited.(2) Compared with the results of pressure scanner,there is a good agreement on the pressure valley and the maximum measuring error near the leading edge and trailing edge,which does not exceed to 4.48%.(3) The maximum measuring error is decreasing when Mach number of the inflow is increasing.
- PSP(pressure sensitive paint) measurement technique /
- large curved angle /
- compressor cascade /
- pressure distribution /
- suction surface

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参考文献(18)

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