可调谐半导体激光吸收光谱技术在高超声速风洞中的应用研究进展
Advancements in Tunable Diode Laser Absorption Spectroscopy for Hypersonic Wind Tunnel Testing
方洪鑫 1支冬 2吴学成 3李云飞 2常雨 2陈卫 2孔荣宗2
作者信息
- 1. 浙江大学工程师学院,浙江 杭州 310015;中国空气动力研究与发展中心超高速空气动力研究所,四川 绵阳 621050;中国空气动力研究与发展中心跨流域空气动力学重点实验室,四川 绵阳 621050
- 2. 中国空气动力研究与发展中心超高速空气动力研究所,四川 绵阳 621050;中国空气动力研究与发展中心跨流域空气动力学重点实验室,四川 绵阳 621050
- 3. 浙江大学工程师学院,浙江 杭州 310015
- 折叠
摘要
高超声速风洞在航空航天领域占据着不可替代的作用.可调谐半导体激光吸收光谱技术(TDLAS)是一种具备非接触、灵敏度高、多参数测量、结构简单、价格低廉和高时空分辨等优点的流场诊断手段,被广泛应用于高超声速风洞等极端环境的温度、组分浓度、气流速度等参数测量.介绍了TDLAS技术的测量原理以及典型的光路设计,总结了近几年来国内外在高超声速风洞流场诊断中开展TDLAS应用的实例,最后概述了国内在高超声速风流场应用TDLAS诊断的发展水平以及还存在的相关问题,并对高超声速风洞中TDLAS流场诊断技术发展做了简单展望,为后续开展TDLAS技术改进及相关高超声速流场诊断实验提供参考.
Abstract
Hypersonic wind tunnels play a crucial role in aerospace research,and tunable diode laser absorption spectroscopy(TDLAS)serves as an invaluable diagnostic method in this field.TDLAS offers no-contact,highly sensitive,and multiparameter measurement capabilities coupled with a simple structure,cost-effectiveness,and high spatiotemporal resolution.This study introduces the measurement principle and typical optical design of TDLAS,highlighting its widespread use for measuring parameters such as temperature,component concentration,and airflow velocity in extreme environments such as hypersonic wind tunnels.Furthermore,this study provides an overview of recent applications of TDLAS in hypersonic wind tunnel flow field diagnosis globally.Additionally,it summarizes the current development status and challenges of TDLAS in hypersonic wind tunnel flow field diagnosis in China.It concludes with a brief outlook on the prospective development of TDLAS flow field diagnosis technology in hypersonic wind tunnels,offering valuable insights for future advancements and related experiments in this domain.
关键词
可调谐半导体激光吸收光谱/高超声速风洞/流场诊断/温度/浓度/速度Key words
tunable diode laser absorption spectroscopy/hypersonic wind tunnel/flow field diagnosis/temperature/concentration/velocity引用本文复制引用
出版年
2024
NETL
NSTL
万方数据