针对现有对固体火箭发动机推进剂燃烧时产生的羽流流速测量方法的不足，提出了将可调谐半导体激光吸收光谱（TDLAS）技术应用于羽流流速的测量方法，通过测量燃烧产物中H2O分子位于1 392 nm处的单根吸收谱线特征，根据多普勒效应建立的光谱频移和分子速度之间的关系来获得气流流速，解决了接触式测量方法会干扰羽流场和传统非接触式测量中示踪粒子不均匀的问题，并且取得了有效试验数据，通过对试验数据进行分析处理，得到了发动机的羽流流速。
Abstract
In order to overcome the shortcomings of the existing methods for measuring plume velocity produced by solid rocket motor propellant combustion, a tunable diode laser absorption spectroscopy (TDLAS) technique was proposed to measure plume velocity. By measuring the characteristics of a single absorption line of hydrogen peroxide molecule in combustion products at 1 392 nm, the spectral frequency shift and molecular velocity were established according to Doppler effect. The relationship was used to obtain the airflow velocity, which solved the problem that the contact measurement method could interfere with the plume flow field and the inhomogeneity of tracer particles in the traditional non-contact measurement, and the effective experimental data are obtained. Futhermore, through the analysis and processing of the experimental data, the plume flow velocity of the engine was obtained.
关键词
固体火箭发动机 /
非接触测量 /
可调谐半导体激光吸收光谱 /
羽流流速 /
激光
{{custom_keyword}} /
Key words
solid rocket motors /
non-contact measurement /
laser /
plume flow velocity /
tunable diode laser absorption spectroscopy (TDLAS)
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
赵业辉, 包轶颖, 赵瑜, 等. 固体火箭发动机羽流温度和热流密度测量[J]. 固体火箭技术,2018,41(3):289-294.
张明星, 蔡国飙, 王永海. 针对发动机羽流的相似准则研究[J]. 载人航天,2018,24(2):253-259.
李猛, 孙美, 赵凤起, 等. 三种典型固体推进剂排气羽流特性参数的模拟计算[J]. 火炸药学报,2018,41(1):86-92.
韩溟, 林晓春, 安毓英. 火焰光谱与图像综合测试系统的设计[J]. 应用光学,2007,28(3):341-344.
张硕, 王宁飞, 张平. 数字图像处理技术在火焰测试中的应用[J]. 含能材料,2007,15(3):273-276.
吴靖, 蔡国飙, 贺碧蛟. 氢氧发动机真空羽流干扰试验研究[J]. 北京航空航天大学学报,2019,45(1):44-49.
高凤, 刘文芳, 孟子晖, 等. 激光拉曼光谱技术在火炸药分析检测中的应用研究进展[J]. 含能材料,2018,26(2):185-196.
王伟臣, 李世鹏, 张峤, 等. 火箭发动机羽流红外特性计算方法研究[J]. 推进技术,201
ZHAO Yehui, BAO Yiying, ZHAO Yu, et al. Solid rocket plume temperature and heat flux measurements[J]. Journal of Solid Rocket Technology,2018,41(3):289-294.
ZHANG Mingxing, CAI Guobiao, WANG Yonghai. Investigation on similarity criterion for engine plume[J]. Manned Spaceflight,2018,24(2):253-259.
LI Meng, SUN Mei, ZHAO Fengqi, et al. Numerical calculation of the exhaust plume characteristic parameters of three typical solid propellantes[J]. Chinese Journal of Explosives & Propellants,2018,41(1):86-92.
HAN Ming, LIN Xiaochun, AN Yuying. Design of complex testing system for flame spectrum and image[J]. Journal of Applied Optics,2007,28(3):341-344.
ZHANG Shuo, WANG Ningfei, ZHANG Ping. Digital image processing technique to test the solid rocket plume[J]. Chinese Joural of Eneretic Materials,2007,15(3):273-276.
WU Jing, CAI Guobiao, HE Bijiao. Experimental investigation on vacuum plume interaction of hydrogen/oxygen engines[J]. Journal of Beijing University of Aeronautics and Astronautics,
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
