中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Extinction of microgravity partially premixed flame aboard the Chinese Space Station

文献类型:期刊论文

作者Wen, Yuzhe7,8; Li, Longfei7,8; Li, Xingxian7,8; Luo, Lei7,8; Chen, Tao7,8; Zhang, Wenyi7,8; Zhou, Hengyi7,8; Chen, Shuqing7,8; Sun, Yuhang7,8; Shi, Jingzan7,8
刊名PROCEEDINGS OF THE COMBUSTION INSTITUTE
出版日期2024
卷号40期号:1-4页码:7
关键词Partially premixed flame Non-premixed flame Radiation Microgravity Extinction
ISSN号1540-7489
DOI10.1016/j.proci.2024.105574
通讯作者Liu, Yu Cheng(ycliu7@tsinghua.edu.cn)
英文摘要The radiation and strain effect can be comparably influential in a partially premixed flame (PPF), especially in microgravity environments. The present study reports the first batch of combustion experiments aboard the Chinese Space Station. The experiments were conducted using a co-flow burner installed on the Gas Combustion Experiment Insert inside the Combustion Science Rack. With both in-orbit experiments and numerical simulations, transient dynamics of extinction in the non-premixed flames (NPFs) and PPFs are analyzed. Results suggested that the NPF branch in a PPF exhibits a "ring-like" structure with partially premixed hooks at its edges prior to global extinction. The extinction is associated with strain rate and radiation effect as analyzed by numerical simulation and comparison with the experimental results. The overall NPF branch exhibits a reduced range of equivalence ratios with two edges retracting in a premixed manner under the considerable influence of radiative heat loss. The contribution of strain and radiation effect for the local extinction is demonstrated through normalized flame stretch rate, radiative heat loss, and local Damkohler number. Results suggested that radiative heat loss for the edges of NPF region can occupy 40 % of the local heat release. A diminishing influence of the strain rate effect on flame propagation leads to a shift towards radiation-controlled extinction. The local radiative extinction at the end of the NPF region ultimately triggering the extinction of the entire NPF region.
分类号一类
WOS关键词TURBULENT JET FLAMES ; DIFFUSION FLAMES ; COFLOW ; STABILIZATION ; TEMPERATURES
资助项目Space Application System of China Manned Space Program under project Laminar partially premixed flame stabilization, lift-off, and blow-off mechanisms ; National Key Research and Development Program of China[2021YFA0716201]
WOS研究方向Thermodynamics ; Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:001278377100001
资助机构Space Application System of China Manned Space Program under project Laminar partially premixed flame stabilization, lift-off, and blow-off mechanisms ; National Key Research and Development Program of China
其他责任者Liu, Yu Cheng
源URL[http://dspace.imech.ac.cn/handle/311007/96208]  
专题力学研究所_国家微重力实验室
作者单位1.Tsinghua Univ, Key Lab Thermal Sci & Power Engn, Minist Educ, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Technol & Engn Ctr Space Utilizat, Beijing 100094, Peoples R China;
3.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China;
4.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
5.Chinese Acad Sci, Key Lab Micrograv, Inst Mech, Beijing 100190, Peoples R China;
6.Tsinghua Univ, Sch Vehicle & Mobil, Beijing 100084, Peoples R China;
7.Tsinghua Univ, Dept Energy & Power Engn, Beijing 100084, Peoples R China;
8.Tsinghua Univ, Ctr Combust Energy, Beijing 100084, Peoples R China;
推荐引用方式
GB/T 7714
Wen, Yuzhe,Li, Longfei,Li, Xingxian,et al. Extinction of microgravity partially premixed flame aboard the Chinese Space Station[J]. PROCEEDINGS OF THE COMBUSTION INSTITUTE,2024,40(1-4):7.
APA Wen, Yuzhe.,Li, Longfei.,Li, Xingxian.,Luo, Lei.,Chen, Tao.,...&Liu, Yu Cheng.(2024).Extinction of microgravity partially premixed flame aboard the Chinese Space Station.PROCEEDINGS OF THE COMBUSTION INSTITUTE,40(1-4),7.
MLA Wen, Yuzhe,et al."Extinction of microgravity partially premixed flame aboard the Chinese Space Station".PROCEEDINGS OF THE COMBUSTION INSTITUTE 40.1-4(2024):7.

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来源:力学研究所

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