IMECH-IR  > 高温气体动力学国家重点实验室
Characterization of flame stabilization modes in an ethylene-fueled supersonic combustor using time-resolved CH* chemiluminescence
Yuan YM(袁越明); Zhang TC(张泰昌); Yao W(姚卫); Fan XJ(范学军); Zhang P(张鹏); Fan, XJ (reprint author), Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing 100190, PR, Peoples R China.
Source PublicationPROCEEDINGS OF THE COMBUSTION INSTITUTE
2017
Volume36Issue:2Pages:2919-2925
ISSN1540-7489
Abstract

Flame stabilization in a Ma = 2.5 direct-connect supersonic combustor was experimentally characterized with a fixed stagnation pressure of 1.0 MPa and wide ranges of stagnation temperature (T-0) from 1200 K to 1800 K and global equivalence ratio (Phi) of ethylene/air from 0.1 to 0.8. Four typical flame stabilization modes were identified by using the time resolved CH* chemiluminescence and presented as a regime nomogram in the T-0-Phi parameter space. As increasing T-0, the range of Phi for the flame stabilization modes is widened and that for the oscillation mode is therefore narrowed. The widely used quasi-1D analysis, with the experimentally determined wall static pressure distribution as input parameters, suggests that the combustor operates in a scramjet mode when the flame is stabilized in the cavity shear layer and in a ramjet mode when the flame is in the jet-wake. The flame oscillation mode, observed only for a narrow range of Phi, was found to correlate with the combustor transition between the scramjet and ramjet modes. (C) 2016 by The Combustion Institute. Published by Elsevier Inc.

KeywordSupersonic Combustion Flame Stabilization Stagtnation Temperature Gloabal Equivalence Ratio Ch** Ch*emiluminesenCh*e
DOI10.1016/j.proci.2016.07.040
Indexed BySCI ; EI
Language英语
WOS IDWOS:000397458900144
WOS KeywordSCRAMJET EXPERIMENT ; BLOWOUT LIMITS ; TRANSITION ; KEROSENE ; ENGINE
WOS Research AreaThermodynamics ; Energy & Fuels ; Engineering
WOS SubjectThermodynamics ; Energy & Fuels ; Engineering, Chemical ; Engineering, Mechanical
Funding OrganizationNational Nature Science Foundation of China [91,016,005, 11,502,270] ; RGC/GRF [PolyU 152,217/14E] ; Central Research Grant (G-YBGA)
Classification一类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/72133
Collection高温气体动力学国家重点实验室
Corresponding AuthorFan, XJ (reprint author), Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Beijing 100190, PR, Peoples R China.
Recommended Citation
GB/T 7714
Yuan YM,Zhang TC,Yao W,et al. Characterization of flame stabilization modes in an ethylene-fueled supersonic combustor using time-resolved CH* chemiluminescence[J]. PROCEEDINGS OF THE COMBUSTION INSTITUTE,2017,36(2):2919-2925.
APA 袁越明,张泰昌,姚卫,范学军,张鹏,&Fan, XJ .(2017).Characterization of flame stabilization modes in an ethylene-fueled supersonic combustor using time-resolved CH* chemiluminescence.PROCEEDINGS OF THE COMBUSTION INSTITUTE,36(2),2919-2925.
MLA 袁越明,et al."Characterization of flame stabilization modes in an ethylene-fueled supersonic combustor using time-resolved CH* chemiluminescence".PROCEEDINGS OF THE COMBUSTION INSTITUTE 36.2(2017):2919-2925.
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