Experimental investigation of liquid film cooling in hypersonic flow

doi:10.1063/1.5088024

	Experimental investigation of liquid film cooling in hypersonic flow
	Yuan CK(苑朝凯)1 ; Li JP(李进平)1 ; Jiang ZL(姜宗林)1,2 ; Yu HR(俞鸿儒)1
通讯作者	Li, Jinping([email protected])
发表期刊	PHYSICS OF FLUIDS
	2019-04-01
卷号	31 期号:4 页码:10
ISSN	1070-6631
摘要	Film cooling is generally considered as a promising active cooling technology for developing thermal protection systems of hypersonic vehicles; however, most of experimental and numerical studies of film cooling mainly concentrated on gaseous film cooling. Since the phase change of liquid coolants can absorb a large amount of latent heat, liquid film cooling should have more potential advantages, especially for severe environments accompanied by hypersonic flight To address this issue, the film cooling using water as a coolant was experimentally investigated in hypersonic flow. Experiments were carried out in a detonation tunnel, at a hypersonic Mach number of 6 using a 25 degrees apex-angle wedge. Characteristic physical quantities, such as surface temperature rise, shock wave structure, film thickness, and cover area, are measured by thermocouples, schlieren, and a specially devised liquid film measurement system. The experimental results verify that the liquid film cooling is feasible in hypersonic flow and also indicate that it is featured with maintaining aerodynamic performances due to the weak effect on the main flow caused by coolant injection. Inspired by these results, liquid film flow characteristics and its influencing factors including mass flow rate, dynamic pressure, coolant injection direction, and surface tension are investigated to guide the design of a thermal protection system. Published under license by AIP Publishing.
DOI	10.1063/1.5088024
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000466701800056
关键词[WOS]	NOSE CONE
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	National Natural Science Foundation of China[11602275] ; National Natural Science Foundation of China[11672312] ; National Natural Science Foundation of China[11532014]
项目资助者	National Natural Science Foundation of China
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：27[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/311007/79194
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, 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	Yuan CK,Li JP,Jiang ZL,et al. Experimental investigation of liquid film cooling in hypersonic flow[J]. PHYSICS OF FLUIDS,2019,31,4,:10.Rp_Au:Li, Jinping
APA	苑朝凯,李进平,姜宗林,&俞鸿儒.(2019).Experimental investigation of liquid film cooling in hypersonic flow.PHYSICS OF FLUIDS,31(4),10.
MLA	苑朝凯,et al."Experimental investigation of liquid film cooling in hypersonic flow".PHYSICS OF FLUIDS 31.4(2019):10.

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