流体机械

2014, v.42;No.509(11) 1-7

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压气机平面叶栅内流场PIV试验研究
PIV Experimental Research in Compressor Cascade Flow Field

薄相峰;刘波;
BO Xiang-feng;LIU Bo;Xi'an University of Architecture and Technology;Northwestern Polytechnical University;

摘要(Abstract):

应用PIV内流测试技术对某高亚音速叶栅速度场进行了测量,得到了叶栅内流通道的流场结构。试验得到了多种来流工况下试验叶栅槽道50%叶高处的速度流场结构图像,对试验数据的初步分析可以看出试验结果符合所测工况下的流动规律。通过对实验方案的改进,应用PIV测试技术测量了平面叶栅附面层流场,捕捉到了叶片吸力面尾缘附面层分离随来流工况变化,。结果表明:PIV测量结果可以为验证数值模拟叶栅通道流场提供可靠的数据,并为叶栅设计的改进优化提供指导和依据。
Using PIV technique,the flow field of compressor cascade was measured,the related technology of measuring high speed flow field was investigated. In the experiment,PIV is used in compressor cascade flow field measurement. Through the experiment,results were acquired that include flow velocity structure images of the tested cascade passage at 50% span,at the higher inlet Mach number. Preliminary analysis into the experimental data shows that the experimental results agree with predicted flow characteristics under tested flow conditions. Improved the experiment method,results were acquired that compressor cascade boundary layer characteristic. The results indicate that the PIV measurment can provide credible data for numerical research and supervise the optimize design of compressor cascade.

关键词(KeyWords): 压气机叶栅;PIV;流场测量;附面层
compressor cascade;PIV;flow field measurement;boundary layer

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基金项目(Foundation): 陕西省教育厅专项科研项目资助项目(12JK0570)

作者(Author): 薄相峰;刘波;
BO Xiang-feng;LIU Bo;Xi'an University of Architecture and Technology;Northwestern Polytechnical University;

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