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On the application of tabulated dynamic adaptive chemistry in ethylene-fueled supersonic combustion
Wu K(吴坤); Contino F; Yao W(姚卫); Fan XJ(范学军)
发表期刊COMBUSTION AND FLAME
2018-11-01
卷号197页码:265-275
ISSN0010-2180
摘要The demands for extending the limiting operation conditions and enhancing the combustion efficiency of scramjets raise new challenges to the research of reliable robust and controllable flame stabilization in supersonic flows. In the present study, Large Eddy Simulation of flame stabilization in a realistic supersonic combustor, employing the tabulation of dynamic adaptive chemistry (TDAC) method were conducted, in comparisons with other relevant chemistry treatment methods, i.e., dynamic adaptive chemistry (DAC), global skeletal mechanism, and detailed mechanism. The wall pressures, the pseudo one-dimensional metrics, combustor global performance and flame structures are all well reproduced by the DAC/TDAC methods compared with the experimental measurements and the benchmark predictions by the detailed mechanism, while the global skeletal mechanism fails to predict the flame stabilization characteristics. The reason for the discrepancy induced by the skeletal mechanism in the flame stabilization simulation was further illustrated through reaction path analyses. Regarding the computational efficiency, the DAC method shows high efficiency for complex reaction systems, with an almost linear increasing speedup factor with the increase of species number. The TDAC method almost doubly further improves the DAC efficiency. The DAC/TDAC methods show great potential of alleviating the huge computational cost while improving the chemistry fidelity for supersonic combustion especially for flame stabilization modeling. (C) 2018 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
关键词Tabulated dynamic adaptive chemistry Skeletal mechanism Supersonic combustion Ethylene Large Eddy Simulation
DOI10.1016/j.combustflame.2018.08.012
URL查看原文
收录类别SCI ; EI
语种英语
WOS记录号WOS:000447815800024
关键词[WOS]CYLINDER HCCI ENGINE ; DUAL-MODE SCRAMJET ; TURBULENT COMBUSTION ; CAVITY FLAMEHOLDER ; SIMULATIONS ; ISOOCTANE ; FLOWS ; FLAME ; TEMPERATURE ; PROPULSION
WOS研究方向Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical ; Engineering, Mechanical
WOS类目Thermodynamics ; Energy & Fuels ; Engineering
项目资助者Training Program of the Major Research Plan of the National Natural Science Foundation of China [91641110] ; National Natural Science Foundation of China [11502270]
论文分区一类/力学重要期刊
力学所作者排名1
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/78128
专题高温气体动力学国家重点实验室
空天飞行科技创新研究中心(筹)
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
3.Vrije Univ Brussel, Dept Mech Engn, BURN Joint Res Grp, Brussels, Belgium
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Wu K,Contino F,Yao W,et al. On the application of tabulated dynamic adaptive chemistry in ethylene-fueled supersonic combustion[J]. COMBUSTION AND FLAME,2018,197:265-275.
APA 吴坤,Contino F,姚卫,&范学军.(2018).On the application of tabulated dynamic adaptive chemistry in ethylene-fueled supersonic combustion.COMBUSTION AND FLAME,197,265-275.
MLA 吴坤,et al."On the application of tabulated dynamic adaptive chemistry in ethylene-fueled supersonic combustion".COMBUSTION AND FLAME 197(2018):265-275.
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