摘要
可调谐半导体激光吸收光谱技术(TDLAS)可以实现流场多组分、多参数的测量,具有其极强的环境适应性,可以用于超燃冲压发动机流场测量。为了研究超燃冲压发动机流场中激波对TDLAS测量的影响,利用计算流体力学方法(CFD)模拟了四种马赫数条件下的斜坡流场分布,采用双谱线测温法获得垂直于流道方向每条光线的平均温度。分析了温度测量结果与激波分布的关系,给出了TDLAS光学探头测量位置的建议。本文得到的结论对TDLAS工程应用和测量结果分析具有重要的参考意义。
Tunable diode laser absorption spectroscopy（TDLAS） can achieve multicomponent and multi parameter measurement of the flow distribution. It has strong environmental adaptability and can be applied to the flow distribution measurement of scramjet. In order to research the impact of shock wave on the TDLAS measurement in the scramjet. The slope flow field distribution under four Mach number conditions is simulated by Computational Fluid Dynamics（CFD）. The average temperature of each ray perpendicular to the channel direction is obtained by using the two-line strategy The relationship between the result of temperature measurement and the distribution of shock wave is analyzed.The suggestion of measuring position of TDLAS optical probe is given.The conclusions have important reference significance for the application of TDLAS engineering and the analysis of the measurement results.
作者
徐博儒
宋俊玲
席文雄
洪延姬
XU Bo-Ru, SONG Jun-Ling, XI Wen-Xiong, HONG Yan-Ji(State Key Laboratory of Laser Propulsion and Application ,University of Space Engineering, B eijing 101416, Chin)
出处
《机电产品开发与创新》
2018年第2期55-58,共4页
Development & Innovation of Machinery & Electrical Products
基金
国家自然科学基金资助(61505263
51606220)
