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。
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 nocontact,highly sensitive,and multiparameter measurement capabilities coupled with a simple structure,costeffectiveness,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.
作者
方洪鑫
支冬
吴学成
李云飞
常雨
陈卫
孔荣宗
Fang Hongxin;Zhi Dong;Wu Xuecheng;Li Yunfei;Chang Yu;Chen Wei;Kong Rongzong(Polytechnic Institute,Zhejiang University,Hangzhou 310015,Zhejiang,China;Hypervelocity Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang 621050,Sichuan,China;Laboratory of Aerodynamics in Multiple Flow Regimes,China Aerodynamics Research and Development Center,Mianyang 621050,Sichuan,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2024年第13期124-138,共15页
Laser & Optoelectronics Progress
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
tunable diode laser absorption spectroscopy
hypersonic wind tunnel
flow field diagnosis
temperature
concentration
velocity
