Numerical and experimental study on high-speed hydrogen-oxygen combustion gas flow and aerodynamic heating characteristics

doi:10.1063/5.0052919

	Numerical and experimental study on high-speed hydrogen-oxygen combustion gas flow and aerodynamic heating characteristics
	Yu JP(于江鹏)1,2; Li JP(李进平)1 ; Wang Q(汪球)1 ; Zhang SZ(张仕忠)1; Zhang XY(张晓源)1
通讯作者	Li, Jinping(lijinping@imech.ac.cn)
发表期刊	PHYSICS OF FLUIDS
	2021-07-01
卷号	33 期号:7 页码:11
ISSN	1070-6631
摘要	The need to increase the payload capacity of the rockets motivates the development of high-power rocket engines. For a chemical propulsion system, this results in an increasing thermal load on the structure, especially the combustion chamber and nozzle must be able to withstand the extreme thermal load caused by high-temperature and high-pressure combustion gas. In order to protect the structure from the effect of increasing heat flux, it is necessary to counteract such effect with more advanced thermal management technology. This requires us to accurately predict the aerodynamic heating of the structure by high-temperature and high-speed combustion gas. In this study, a high-temperature combustion gas tunnel developed in the laboratory is used to produce high-speed combustion gas. Combined with the results of numerical calculation, the flow and aerodynamic heating characteristics of air and hydrogen-oxygen combustion gas under the same total temperature and pressure are analyzed and compared. The comparison revealed that the combustion gas flow in the nozzle has higher static temperature, velocity, and smaller Mach number. When the combustion gas flows around the sphere, the shock standoff distance and stagnation pressure are smaller than those of air, and the wall heat flux is much larger than that of air. The active chemical reaction in the combustion gas makes the aerodynamic heating of the structure more severe. Finally, through the analysis of a large amount of data, a semi-empirical formula for the heat flux of the stagnation point heated by a high-speed hydrogen and oxygen equivalent ratio combustion gas is obtained. Published under an exclusive license by AIP Publishing.
DOI	10.1063/5.0052919
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000691869700001
关键词[WOS]	PROFILES ; NOZZLE
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Li, Jinping
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/87390
专题	高温气体动力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yu JP,Li JP,Wang Q,et al. Numerical and experimental study on high-speed hydrogen-oxygen combustion gas flow and aerodynamic heating characteristics[J]. PHYSICS OF FLUIDS,2021,33,7,:11.
APA	于江鹏,李进平,汪球,张仕忠,&张晓源.(2021).Numerical and experimental study on high-speed hydrogen-oxygen combustion gas flow and aerodynamic heating characteristics.PHYSICS OF FLUIDS,33(7),11.
MLA	于江鹏,et al."Numerical and experimental study on high-speed hydrogen-oxygen combustion gas flow and aerodynamic heating characteristics".PHYSICS OF FLUIDS 33.7(2021):11.

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