二维LDA系统在液体流速测量中的修正及应用

基金项目:

国家自然基金资助项目

详细信息

Amendment and application of 2-D LDA in fluid

School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, 200030

摘要: 结合三光束激光多普勒测速仪,从理论上分析了在不同介质中测量参数的修正,推导出LDA在不同介质中的参数修正公式。以空气和水两种不同介质为例,利用修正公式求出各自的参数,在二维流道上用LDA测量减阻流体的流速,将LDA与流量计的测量结果进行比较,结果令人满意。
- 激光多普勒测速仪(LDA) /
- 激光多普勒测速技术 /
- 速度测量
Abstract: Coupled with the 3-beam laser Doppler anemometry(LDA),the amendment of the measuring parameters in different media was discussed in theory. And the amendatory formulas were achieved. With the formulas,the parameters both in air and in water were obtained and compared. The result proved the amendment of the parameters was correct and necessary. The mean velocities were gained individually in the reduction fluid by LDA and flowmeter. By comparing the two results,it proved the LDA was trustiness.
- laser Doppler anemometry(LDA) /
- the amendment of parameters /
- the measurement of velocity

[1]	杨国光主编.近代光学测试技术.杭州:浙江大学出版社,1997.
[2]	孙渝生编著.激光多普勒测量技术及其应用.上海:上海科学技术文献出版社,1995.
[3]	McAndrew D,Coppen S,Rogers C B.International Journal of Multiphase Flow,2001,27(9):1517.
[4]	Mathiesen V,Solberg T,Hjertager B H.International Journal of Multiphase Flow,2000,26(3):387.
[5]	沈熊,董鹏,陈巧宁 et al.流体力学实验与测量,1998,12(4):53.
[6]	Drain L E著,王仕康,沈熊,周作元译.激光多普勒技术.北京:清华大学出版社,1985.