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Effect of cowl shock on restart characteristics of simple ramp type hypersonic inlets with thin boundary layers
Yue LJ(岳连捷); Jia YN(贾轶南); Xu X; Zhang XY(张新宇); Zhang P(张鹏)
Source PublicationAEROSPACE SCIENCE AND TECHNOLOGY
2018-03-01
Volume74Pages:72-80
ISSN1270-9638
AbstractThe effect of cowl angle on the restart characteristics of simple ramp type hypersonic inlets was experimentally investigated in shock tunnel equipped with schlieren imagery and static pressure measurement. The cowl shock strength is found to be a key factor that determines the inlet restart and makes the restart contraction ratios significantly deviate from the Kantrowitz criterion. Stronger cowl shock tends to degrade the inlet restart capability by causing larger separation bubble and higher pressure loss during the restarting process. In particular, a sensitive range of the cowl angles, within which the restart contraction ratio decreases rapidly, was identified. A design concept of multiple noncoalesced cowl shocks was thus proposed and proven to significantly improve the inlet restart capability. (C) 2018 Elsevier Masson SAS. All rights reserved.
KeywordInlet restart Cowl shock Shock wave boundary layer interactions
DOI10.1016/j.ast.2017.12.018
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000426332900008
WOS KeywordPERFORMANCE
WOS Research AreaEngineering, Aerospace
WOS SubjectEngineering
Funding OrganizationHong Kong Polytechnic University Central Research Grants [G-UA2M, G-YBGA] ; "Open Fund" of State Key Laboratory of High-Temperature Gas Dynamics, Chinese Academy of Sciences ; National Natural Science Foundation of China [11472279, 11672309]
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77922
Collection高温气体动力学国家重点实验室
空天飞行科技中心(筹)
Affiliation1.Chinese Acad Sci, Inst Mech, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.Hong Kong Polytech Univ, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China
Recommended Citation
GB/T 7714
Yue LJ,Jia YN,Xu X,et al. Effect of cowl shock on restart characteristics of simple ramp type hypersonic inlets with thin boundary layers[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2018,74:72-80.
APA 岳连捷,贾轶南,Xu X,张新宇,&张鹏.(2018).Effect of cowl shock on restart characteristics of simple ramp type hypersonic inlets with thin boundary layers.AEROSPACE SCIENCE AND TECHNOLOGY,74,72-80.
MLA 岳连捷,et al."Effect of cowl shock on restart characteristics of simple ramp type hypersonic inlets with thin boundary layers".AEROSPACE SCIENCE AND TECHNOLOGY 74(2018):72-80.
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