中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
超燃燃烧室气流参数诊断

文献类型:期刊论文

作者李飞; 余西龙; 顾洪斌; 李智; 陈立红; 张新宇
刊名力学学报
出版日期2011-11-18
卷号43期号:6页码:1061-1067
关键词可调谐二极管吸收光谱技术 温度分布 速度分布 超声速燃烧 燃烧效率
ISSN号0459-1879 
其他题名MEASUREMENT OF FLOW PARAMETERS IN A SCRAMJET COMBUSTOR BASED ON NEAR-INFRARED ABSORPTION
产权排序高温气体动力学国家重点实验室中国科学院力学研究所
通讯作者李飞
中文摘要基于可调谐二极管激光器吸收光谱技术,利用7185.597 cm~(-1),7444.35cm~(-1) + 7444.37 cm~(-1)(重合吸收线)两条H_2O吸收线,采用分时扫描-直接探测策略组建多光路吸收测量系统,在4kHz的测量频率下,定量测量了燃烧室气流的静温、水蒸气浓度和流向速度.利用位移机构,在以C_2H_4为燃料的超燃直连式试验台中,在单次试验中同时诊断燃烧室内某截面和燃烧室出口的多气流参数的截面分布.利用燃烧室出口截面的水蒸气浓度分布,并结合壁面静压计算燃烧效率;利用燃烧室出口截面的静温和速度分布,获得出口气流马赫数分布;利用凹腔后部某截面的温度和水蒸气浓度分布,判读了凹腔附近流场特征。
英文摘要A multi-channel tunable diode laser absorption spectroscopy(TDLAS) system was constructed to measure flow parameters in a direct-connected scramjet test facility fueled with ethylene.Two fibers coupled distributed feedback(DFB) lasers with narrow line width were used to probe two H2O absorption featuresby using direct absorption time-division-multiplexing(TDM) strategy at a 4 kHz scan rate.Flow parameters were measured,which included the distribution of temperature,water vapor concentration and velocity at the exit cross section of the combustor,the distribution of temperature and water vapor concentration in the cross section near the cavity.Combustion efficiency was obtained by using the water vapor partial pressure distribution and the wall static pressure.Mach number distribution was deduced from the temperature and velocity parameters distributions at the exit cross section of the combustor,and the distributions of temperature and water vapor concentration in the cross section near the cavity were used to analyze combustion characteristics in the combustor. 更多
学科主题力学
分类号二类
收录类别EI ; CSCD
资助信息国家自然科学基金资助项目(90816015,11002148)~~
原文出处http://epub3.cnki.net/grid2008/brief/detailj.aspx?filename=LXXB201106011&dbname=CJFQ2011
语种中文
CSCD记录号CSCD:4403213
公开日期2012-04-01
源URL[http://dspace.imech.ac.cn/handle/311007/45186]  
专题力学研究所_高温气体动力学国家重点实验室
推荐引用方式
GB/T 7714
李飞,余西龙,顾洪斌,等. 超燃燃烧室气流参数诊断[J]. 力学学报,2011,43(6):1061-1067.
APA 李飞,余西龙,顾洪斌,李智,陈立红,&张新宇.(2011).超燃燃烧室气流参数诊断.力学学报,43(6),1061-1067.
MLA 李飞,et al."超燃燃烧室气流参数诊断".力学学报 43.6(2011):1061-1067.

入库方式: OAI收割

来源:力学研究所

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