Large eddy simulation of rest hypersonic combustor based on dynamic zone flamelet model

	Large eddy simulation of rest hypersonic combustor based on dynamic zone flamelet model
	Yao W(姚卫); Chen L(陈留)
会议录名称	AIAA Propulsion and Energy 2020 Forum
	2020
会议名称	AIAA Propulsion and Energy 2020 Forum
会议日期	24 August 2020 through 28 August 2020
摘要	Internal-external coupled full-scale modeling for a rectangular-to-elliptical shape-transition (REST) scramjet under a high flight Mach number of 12 was modeled by Improved Delayed Improved Delayed Detached Eddy Simulation (IDDES) and a Dynamic Zone Flamelet combustion Model (DZFM). The modeling is based on a total cell number of 63.03 million and a 13s/33r nonequilibrium hydrogen mechanism. The effect of differential diffusion was investigated for the flow fields, efficiency indices, and thrust performance. A sensitivity analysis of the zone discretion was conducted to select the optimal zone number with acceptable accuracy yet high efficiency. The predicted wall pressure is comparable with the measurements. Detailed analysis of the characteristics of hypersonic flow, reacting species, and combustion was analyzed by using Takeno Flame Index (TFI) and Chemical Explosives Mode Analysis (CEMA), etc. © 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
资助信息	The research was supported by Training Program of the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91641110), National Key Research and Development Program of China (2019YFB1704200), and the Open founding of National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics (Grant No. 6142702180307). The authors are also grateful to the National Supercomputer Center in Tianjin for providing the computational resource.
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收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/86655
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Yao W,Chen L. Large eddy simulation of rest hypersonic combustor based on dynamic zone flamelet model[C]AIAA Propulsion and Energy 2020 Forum,2020.

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