Large Eddy Simulation of Axisymmetric Scramjet Based on Dynamic Zone Flamelet Model

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Large Eddy Simulation of Axisymmetric Scramjet Based on Dynamic Zone Flamelet Model
	Sun WM(孙文明); Liu H(刘航); Li L(李龙); Yao W(姚卫)
	2023
会议日期	NOV 15-17, 2021
会议地点	Korean Soc Aeronaut & Space Sci, Jeju, SOUTH KOREA
关键词	Axisymmetric scramjet Ethylene Improved Delay Detached Eddy Simulation (IDDES) Dynamic Zone Flamelet Model (DZFM) Cavity
页码	1263-1278
英文摘要	To verify the effectiveness of a novel axisymmetric scramjet, Improved Delay Detached Eddy Simulation (IDDES) coupled with Dynamic Zone Flamelet Model (DZFM) based on 60 million cells was conducted to investigate the performance of the full-scale engine. Four mesh sets with different refinement levels and adopting hexahedral structured cells were used for the grid independence verification. The pressure agrees well with the experimental data. Due to the absence of the corner effect, the boundary layer is thinner and the jet penetration depth is low. The poor mixing between the transverse fuel jet and the crossflow causes weak combustion and a low-pressure rise ratio. The cavity plays four roles in enhancing combustion: a radial pool, a low-speed bay, a high-temperature zone, and a premixer. Axisymmetric scramjets without any flame holders overall have poor mixing and combustion performance.
会议录	PROCEEDINGS OF THE 2021 ASIA-PACIFIC INTERNATIONAL SYMPOSIUM ON AEROSPACE TECHNOLOGY (APISAT 2021), VOL 2
资助机构	National Key Research and Development Program of China [2019YFB1704200]
语种	英语
URL标识	查看原文
ISBN号	978-981-19-2635-8; 978-981-19-2634-1
WOS记录号	WOS:000865936500090
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90519]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, Key Lab High Temp Gas Dynam, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Sun WM,Liu H,Li L,et al. Large Eddy Simulation of Axisymmetric Scramjet Based on Dynamic Zone Flamelet Model[C]. 见:. Korean Soc Aeronaut & Space Sci, Jeju, SOUTH KOREA. NOV 15-17, 2021.