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Experimental study on the effect of combustor configuration on the performance of dual-mode combustor
Alternative TitleAEROSPACE SCIENCE AND TECHNOLOGY
Wang ZP(王知溥); Li F(李飞); Gu HS; Yu XL(余西龙); Zhang XY(张新宇); Li, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Source PublicationAEROSPACE SCIENCE AND TECHNOLOGY
2015-04
Volume42Pages:169-175
ISSN1270-9638
AbstractScramjet design is still a great challenge for researchers. It proves to be a critical issue for scramjet combustor to avoid intensive thermal choking while increasing combustion efficiency. Focusing on this target, the relationship between combustor configuration and the performance of dual-mode combustor was investigated using a direct-connected scramjet facility. Combustor was constituted by constant area part and divergent part, while cavities equipped in the expanded wall as flame-holding device. Ethylene was injected normally into the Ma 2.5 mainstream by both wall and cavity injectors. Two critical parameters of configuration, cavity location and the divergent angle, were changed during experiments. Combustion efficiency could evaluate the combustor performance, which was measured by an optical sensor based on tunable diode laser absorption spectroscopy (TDLAS). Combined with traditional wall static pressure and schlieren measurement, combustion efficiency and possible heat release both streamwise and spanwise were analyzed for different cases. It is found that combustion apparently is well organized with smaller divergent angle. Combustor could avoid inlet unstart and get disperse heat release with double cavities, but there is still space to increase efficiency by changing the location of recirculation zone. And experimental results show that the cooperation of cavities is essential for stabilizing combustion downstream. (C) 2015 Elsevier Masson SAS. All rights reserved.
KeywordScramjet Dual-mode Combustor Divergent Angle Cavity Location Combustion Efficiency Tdlas
DOI10.1016/j.ast.2015.01.008
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000352332600019
WOS KeywordKEROSENE-FUELED SCRAMJET ; CAVITY FLAMEHOLDER ; MECHANISMS ; ENGINES ; FLOW
WOS Research AreaEngineering
WOS SubjectEngineering, Aerospace
Funding OrganizationNational Natural Science Foundation of China [11002148, 11372329, 90816015]
DepartmentLHD高温气流激光诊断
Classification二类
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49990
Collection高温气体动力学国家重点实验室
Corresponding AuthorLi, F (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wang ZP,Li F,Gu HS,et al. Experimental study on the effect of combustor configuration on the performance of dual-mode combustor[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2015,42:169-175.
APA Wang ZP,Li F,Gu HS,Yu XL,Zhang XY,&Li, F .(2015).Experimental study on the effect of combustor configuration on the performance of dual-mode combustor.AEROSPACE SCIENCE AND TECHNOLOGY,42,169-175.
MLA Wang ZP,et al."Experimental study on the effect of combustor configuration on the performance of dual-mode combustor".AEROSPACE SCIENCE AND TECHNOLOGY 42(2015):169-175.
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