Characterization of reflected shock tunnel air conditions using a simple method

doi:10.1063/5.0089120

	Characterization of reflected shock tunnel air conditions using a simple method
	Gu, Sangdi 1,2; Olivier, Herbert 1; Wen, Chih-Yung 2; Hao, Jiaao 2; Wang Q(汪球)3
通讯作者	Gu, Sangdi([email protected])
发表期刊	PHYSICS OF FLUIDS
	2022-05-01
卷号	34 期号:5 页码:17
ISSN	1070-6631
摘要	A new method to characterize air test conditions in hypersonic impulse facilities is introduced. It is a hybrid experimental-computational rebuilding method that uses the Fay-Riddell correlation with corrections based on thermochemical nonequilibrium computational fluid dynamic results. Its benefits include simplicity and time-resolution, and using this method, a unique characterization can be made for each individual experimental run. Simplicity is achieved by avoiding the use of any optical techniques and overly expensive numerical computations while still maintaining accuracy. Without making any assumptions to relate the reservoir conditions to the nozzle exit conditions, the work done characterizing four test conditions in a reflected shock tunnel is presented. In this type of facility, shock compression is used to produce an appropriate reservoir, which is then expanded through a nozzle to produce hypersonic flow. Particular focus is given to the nozzle exit total enthalpy where a comparison is made with the reservoir enthalpy obtained using the measured shock speed and pressure in the shock tube. Good agreement is observed in all cases providing validation of the new approach. Additionally, static pressure measurements showed clearly that conditions III and IV have a thermochemical state which likely froze shortly after the nozzle throat. Also, the nozzle flow is shown to be almost isentropic. Due to the simplicity of the current method, it can be easily implemented in existing facilities to provide an additional independent estimate alongside existing results. Published under an exclusive license by AIP Publishing.
DOI	10.1063/5.0089120
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000797244200002
关键词[WOS]	TEST FLOW RECONSTRUCTION ; SCALE EXPANSION TUBE ; HEAT-TRANSFER ; NUMERICAL SIMULATIONS ; HYPERSONIC FLOW ; NONEQUILIBRIUM ; VALIDATION ; SOLVER
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	3+
RpAuthor	Gu, Sangdi
引用统计	被引频次：5[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/311007/89541
专题	高温气体动力学国家重点实验室
作者单位	1.Rhein Westfal TH Aachen, Shock Wave Lab, Templergraben 55, D-52062 Aachen, Germany; 2.Hong Kong Polytech Univ, Dept Aeronaut & Aviat Engn, Kowloon, Hong Kong, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Gu, Sangdi,Olivier, Herbert,Wen, Chih-Yung,et al. Characterization of reflected shock tunnel air conditions using a simple method[J]. PHYSICS OF FLUIDS,2022,34,5,:17.Rp_Au:Gu, Sangdi
APA	Gu, Sangdi,Olivier, Herbert,Wen, Chih-Yung,Hao, Jiaao,&汪球.(2022).Characterization of reflected shock tunnel air conditions using a simple method.PHYSICS OF FLUIDS,34(5),17.
MLA	Gu, Sangdi,et al."Characterization of reflected shock tunnel air conditions using a simple method".PHYSICS OF FLUIDS 34.5(2022):17.

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