流体机械

2002, (05) 8-12

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PDA技术应用在风机动叶流场测量中的几个问题
Several PDA Application Problems in the Measurement of an Axial Flow Rotor

赵岩,竺晓程,杜朝辉
Zhao Yan Zhu Xiaocheng Du Zhaohui

摘要(Abstract):

介绍了激光相位多普勒测速 (PDA)技术在轴流风机动叶内部流场测量中的应用 ,对于影响测量精度和效率的几个关键问题 ,如测量窗口的形式的选择、散射粒子的选择、散射粒子加入方式的选择、测量盲区的克服、流动噪音的处理等 ,进行了分析讨论。结合实践经验提出了一些切实可行的解决办法并得到了较好的测量结果
The application of laser Doppler technique in the measurement of an axial flow rotor are introduced. When using Laser Phase Doppler Anemometer(PDA)as a tool to measure the three dimensional flow field in an axial flow fan, there are a lot of problems that influence the precision and efficiency of measurement, such as the choice of window style, the choice of particle, how to add particle, how to solve blind field problem of measurement and how to reduce flow noise. These problems are emphatically analysed and discussed. Combining with experience, some receivable methods are put forward and some good measurement results are get.

关键词(KeyWords): 激光相位多普勒测速(PDA);轴流风机;流场测量
laser phase doppler anemometer(PDA);axial flow fan;measurement of flow field

Abstract:

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基金项目(Foundation): 国家自然科学基金项目 (5 0 1760 3 0 );; 上海市曙光计划项目 (2 0 0 0 10 5 )

作者(Author): 赵岩,竺晓程,杜朝辉
Zhao Yan Zhu Xiaocheng Du Zhaohui

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