IMECH-IR  > 高温气体动力学国家重点实验室
Modeling Analysis of an Actively Cooled Scramjet Combustor Under Different Kerosene/Air Ratios
Yao W(姚卫)1,2; Lu Y(陆阳)1; Wu K(吴坤)1; Wang J(王晶)1; Fan XJ(范学军)1,2,3
Source PublicationJOURNAL OF PROPULSION AND POWER
2018-07-01
Volume34Issue:4Pages:975-991
ISSN0748-4658
Abstract

Improved delayed detached Eddy simulation (IDDES) modeling based on a developed skeletal combustion mechanism of kerosene/air is conducted for a full-scale actively cooled scramjet combustor under two different global equivalence ratios. A reformulated partially stirred reactor (PaSR) is proposed to adapt it for high mesh resolution. A skeletal mechanism consisting of only 28 species and 92 reactions is reduced for the kerosene combustion modeling. A one-dimensional solid-gas-liquid coupling method is developed to simulate the active cooling effect. The time-averaged static pressure and wall heat flux profiles are well predicted for both fuel-lean and stoichiometric cases. The supersonic flow, mixing, and combustion characteristics under the two fuel/air ratios are quantitatively compared based on the efficiency indices, Takeno Flame Index, and the correlation statistics between heat release rate and mixture fraction. The vorticity and its evolution are analyzed through the five source terms for the two cases. The turbulence-chemistry interaction is then analyzed by the aid of numerous quantitative indices, such as Damkohler number, PaSR coefficient, and scalar dissipation rate, as well as their correlation statistics to identify the main combustion modes in the scramjet combustor.

DOI10.2514/1.B36866
Indexed BySCI ; EI
Language英语
WOS IDWOS:000435924500015
WOS KeywordSupersonic Combustion ; Hydrogen ; Les
WOS Research AreaEngineering
WOS SubjectEngineering, Aerospace
Funding OrganizationTraining Program of the Major Research Plan of National Natural Science Foundation of China(91641110) ; National Natural Science Foundation of China(11502270)
Classification二类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77637
Collection高温气体动力学国家重点实验室
空天飞行科技中心(筹)
Corresponding AuthorFan XJ(范学军)
Affiliation1.Chinese Acad Sci, Key Lab HighTemp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.AIAA, Reston, VA 20191 USA
Recommended Citation
GB/T 7714
Yao W,Lu Y,Wu K,et al. Modeling Analysis of an Actively Cooled Scramjet Combustor Under Different Kerosene/Air Ratios[J]. JOURNAL OF PROPULSION AND POWER,2018,34(4):975-991.
APA Yao W,Lu Y,Wu K,Wang J,&Fan XJ.(2018).Modeling Analysis of an Actively Cooled Scramjet Combustor Under Different Kerosene/Air Ratios.JOURNAL OF PROPULSION AND POWER,34(4),975-991.
MLA Yao W,et al."Modeling Analysis of an Actively Cooled Scramjet Combustor Under Different Kerosene/Air Ratios".JOURNAL OF PROPULSION AND POWER 34.4(2018):975-991.
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