Dynamics character of swirling flame investigated by OH and CH2O planar laser-induced fluorescence
文献类型：会议论文
| 作者 | Yan H(严浩) ; Zhang SH(张少华); 余西龙 Yu, Xilong; Yu XL(余西龙); Zhang SH(张少华); Zhang SH(张少华); Yan H(严浩)
|
| 出版日期 | 2019 |
| 会议日期 | NOV 11-13, 2018 |
| 会议地点 | Changsha, PEOPLES R CHINA |
| 关键词 | laser induced fluorescence swirling flame OH CH2O proper orthogonal decomposition |
| 页码 | 110460Q |
| 英文摘要 | The model combustor of aircraft engine under fuel-lean condition is characterized by planar laser-induced fluorescence (PLIF) technique. By imaging the fluorescence from OH and CH2O simultaneously under various operation points, the transient structures of the reaction zone and preheat zone have been investigated. By the application of proper orthogonal decomposition (POD) and extended POD (EPOD) methods to the OH PLIF and CH2O PLIF data, the main dynamics modes of the swirling flame are extracted, as well as the CH2O PLIF signal distribution for each POD mode. The experimental results indicate that as the thermal power of the combustor increases, the time-averaged structure and dynamics modes experience notable transitions. At relatively high flow rate, local extinction occurs and unburnt fuel emerges in the external recirculation zone (ERZ). |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China [11672359] |
| 会议录 | FIFTH INTERNATIONAL SYMPOSIUM ON LASER INTERACTION WITH MATTER
 |
| 语种 | 英语 |
| ISBN号 | 978-1-5106-2759-8 |
| WOS记录号 | WOS:000470011400025 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/80463]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan H,Zhang SH,余西龙 Yu, Xilong,et al. Dynamics character of swirling flame investigated by OH and CH2O planar laser-induced fluorescence[C]. 见:. Changsha, PEOPLES R CHINA. NOV 11-13, 2018. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。