Calibration of pressure-sensitive paint and application to the measurement of film cooling effectiveness

ZHANG Chao; WANG Zhan; ZHOU Si-jing; LIU Jian-jun

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Calibration of pressure-sensitive paint and application to the measurement of film cooling effectiveness

更新时间：2026-07-07

- Calibration of pressure-sensitive paint and application to the measurement of film cooling effectiveness
- Vol. 26, Issue 12, (2011)
- 作者机构：
  
  1. 中国科学院工程热物理研究所,北京,100190
  2. 中国科学院研究生院,北京,100190
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHANG Chao, WANG Zhan, ZHOU Si-jing, et al. Calibration of pressure-sensitive paint and application to the measurement of film cooling effectiveness[J]. 2011, 26(12).
DOI：

ZHANG Chao, WANG Zhan, ZHOU Si-jing, et al. Calibration of pressure-sensitive paint and application to the measurement of film cooling effectiveness[J]. 2011, 26(12). DOI：

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正.在此基础上

将压力敏感涂料测试技术分别应用于圆柱孔、扇形孔气膜冷却效率的测量中

所得实验数据与前人结果符合较好.

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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