| 压力敏感涂料的标定及在气膜冷却效率测量中的应用 |
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| 引用本文： | 张超,王湛,周嗣京,刘建军.压力敏感涂料的标定及在气膜冷却效率测量中的应用[J].航空动力学报,2011,26(12):2691-2697. |
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| 作者姓名： | 张超 王湛 周嗣京 刘建军 |
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| 作者单位： | 1. 中国科学院工程热物理研究所,北京100190／中国科学院研究生院,北京100190
2. 中国科学院工程热物理研究所,北京,100190 |
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| 基金项目： | 国家重点基础研究发展计划(2007CB210108) |
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| 摘 要： | 采用自行设计的标定装置对压力敏感涂料进行了标定实验,研究了激励光源光强、温度两种参数对标定曲线的影响.结果表明：当激励光源光强能够使得光敏分子发生氧猝熄条件下,激励光源光强对标定曲线的影响可以忽略不计;标定曲线对温度变化较为敏感.据此提出了采用二维插值方法得出发射光强关于压力比、温度比的表达式,从而对测量结果进行温度修...
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| 关 键 词： | 压力敏感涂料 标定实验 激励光源光强 温度修正 气膜冷却 |
| 收稿时间： | 2011/2/28 0:00:00 |
| 修稿时间： | 2011/5/25 0:00:00 |
Calibration of pressure-sensitive paint and application to the measurement of film cooling effectiveness |
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| ZHANG Chao,WANG Zhan,ZHOU Si-jing and LIU Jian-jun.Calibration of pressure-sensitive paint and application to the measurement of film cooling effectiveness[J].Journal of Aerospace Power,2011,26(12):2691-2697. |
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| Authors: | ZHANG Chao WANG Zhan ZHOU Si-jing and LIU Jian-jun |
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| Institution: | Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;Graduate University of Chinese Academy of Sciences, Beijing 100190, China;Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;Graduate University of Chinese Academy of Sciences, Beijing 100190, China;Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China;Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Calibration of pressure sensitive paint was carried out by using the self-designed calibration setup.The influence of excitation light intensity and temperature on the calibration curve was investigated.The experimental results showed that the effect of excitation light intensity was negligible when the excitation light intensity was sufficient to cause the oxygen quenching of luminescent molecules,but the calibration curve was more sensitive to the temperature change.The expression of emission light intensity about pressure ratio and temperature ratio was proposed based on two-dimensional interpolation method,and the measurement results were corrected to account for temperature change effects.Then the pressure sensitive paint technology was applied to the film cooling effectiveness measurement of cylinder film hole and fan-shaped film hole,and the experimental results compared well with the previous experimental data. |
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| Keywords: | pressure-sensitive paint(PSP) calibration experiment excitation light intensity temperature correction film cooling |
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