光学压力敏感涂料测量技术及其在内流场应用

本文介绍了应用基于发光强度的全域压力测量方法进行叶片表面压力分布的一系列实验结果。在自主建立光学压力测量系统和自主研发国产压力敏感涂料的基础上，对高亚音速叶栅风洞出口处大弯度孤立叶片吸力面和对转压气机实验平台出口整流叶片吸力面的压力分布进行了测量，并采用传统电子静压扫描装置在高亚音速叶栅风洞中进行了同步测量。光学压力测量与电子压力扫描结果的对比表明所建立的光学压力测量系统可用于内流场测量，其精度达到了工程应用水平。

Investigation of Pressure Sensitive Paint Technique and Its Application in Internal Flow Fields

A series of experimental pressure measurements inside internal flow fields employing the intensity-based method of Pressure-Sensitive Paint (PSP) technique have been depicted, which were based on self-established PSP measurement system and nationally developed Pressure-Sensitive Paint. These experimental measurements include the applications inside both the transonic cascade wind tunnel and the nationally unique Axial Dual Counter-rotate Compressor Facility (ADCCF) of Northwest Polytechnical University (NWPU). The test articles were a single vane of a large bending angle in transonic cascade wind tunnel and the oriented vane inside ADCCF, and both the surfaces of interest were the suctions. The traditional pressure measurement using Electronic Pressure Scanning (ESP) has been simultaneously conducted in the cascade wind tunnel for comparison. The contrast of both results from PSP and ESP have revealed the feasible capability of PSP application in internal flow fields and indicated that for the usage in practical industrial engineering.