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LES Study of Flame Stabilization in DLR Hydrogen Supersonic Combustor with Strut Injection
Wu K(吴坤); Zhang P(张鹏); Yao W(姚卫); Fan XJ(范学军); Zhang, Peng(pengzhang.zhang@polyu.edu.hk)
Source Publication21st AIAA International Space Planes and Hypersonics Technologies Conference, Hypersonics 2017
2017
Conference Name21st AIAA International Space Planes and Hypersonics Technologies Conference
Conference Date6-9 March 2017
Conference PlaceXiamen, China
Abstract

Supersonic combustion in the hydrogen fueled DLR model scramjet combustor was computationally investigated by using Large Eddy Simulation (LES) combined with the latest detailed reaction mechanism for hydrogen combustion. Two computational models were employed including a two-dimensional reduced model and a three-dimensional model with periodicity in the spanwise direction. The two-dimensional model was fully validated against the three-dimensional model and the experimental data for the wall pressure measurements and the axial velocity under non-reacting flow condition. For reacting flow, the present model shows good agreement with the experimental axial velocity and static temperature measurements. Furthermore, radical evolution and heat release analysis were conducted both qualitatively and quantitatively to reveal the flame stabilization mechanism in the DLR combustor. The results show that the combustion is characterized by a three-stage combustion mode, namely induction, radical transportation and intense turbulent combustion stages. 漏 2017, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

KeywordCombustion Diesel Engines Hydrogen Large Eddy Simulation Spacecraft Stabilization Supersonic Aircraft Temperature Measurement Wall Flow
ISBN978-1-62410-463-3
URL查看原文
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/72188
Collection高温气体动力学国家重点实验室
Corresponding AuthorZhang, Peng(pengzhang.zhang@polyu.edu.hk)
Affiliation1.Department of Mechanical Engineering, Hong Kong Polytechnic University, Hong Kong (2) State Key Laboratory of High Temperature Gas Dynamics, Chinese Academy of Sciences, Beijing
2.190, China (3) School of Engineering Science, University of Chinese Academy of Science, Beijing
3.100049, China
Recommended Citation
GB/T 7714
Wu K,Zhang P,Yao W,et al. LES Study of Flame Stabilization in DLR Hydrogen Supersonic Combustor with Strut Injection[C]. USA:American Institute of Aeronautics and Astronautics Inc, AIAA,2017.
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