IMECH-IR  > 高温气体动力学国家重点实验室
利用TDLAS诊断激波风洞自由流的实验研究
林鑫; 余西龙; 李飞; 陈宏; 张新宇
Source Publication第十五届全国激波与激波管学术会议论文集(下册)
2012
Pages374-380
Conference Name第十五届全国激波与激波管学术会议
Conference Date2012-07-13
Conference Place中国浙江杭州
Abstract利用一套基于直接吸收-扫描波长法的可调谐二极管激光器吸收光谱系统(TDLAS),对中科院力学所国家重点实验室双爆轰激波风洞运行的实验状态进行诊断。利用HITRAN2008光谱数据库,选取1343nm和1470nm附近两组H_2O吸收线。首先利用1470nm附近一对吸收线:6804.40cm~(-1)和6804.34cm~(-1),分别为低温、高温吸收线,结合风洞相关设计参数,初步判断气流温度和压力信息,并通过多峰拟合方法,对试验舱外空气中水蒸气及试验舱内残余水蒸气的影响进行评估。根据以上实验结果,采用H_2O的1343nm(7444.35cm~(-1)+7444.37cm~(-1))高温吸收线...
Keyword激波风洞 可调谐二极管吸收光谱技术(Tdlas) 温度测量 浓度测量
DepartmentLHD高温气流激光诊断
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48502
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
林鑫,余西龙,李飞,等. 利用TDLAS诊断激波风洞自由流的实验研究[C]第十五届全国激波与激波管学术会议论文集(下册),2012:374-380.
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