Experimental and numerical investigation of three-dimensional shock train topology with differently oriented background waves

doi:10.1103/PhysRevE.109.025103

	Experimental and numerical investigation of three-dimensional shock train topology with differently oriented background waves
	Wang, Dayi ; Wang, Ziao ; Chang, Juntao ; Yue LJ(岳连捷); Wang, Gang; Chen H(陈昊)
Source Publication	PHYSICAL REVIEW E
	2024-03
Volume	109 Issue:2 Pages:25103
ISSN	2470-0045
Abstract	To better understand the three-dimensional topology of the interaction between the shock train and the background wave, the steady and dynamic characteristics of a shock train were investigated using wind-tunnel experiments and numerical simulation. A 14 degrees wedge placed at the bottom and sidewalls was used to generate background waves traveling in different directions. Mounting the wedge on the bottom wall at an incoming Mach number of 1.85 leads to the formation of two symmetric and two asymmetric lambda-shaped shock train leading shocks (STLSs), while an incoming Mach number of 2.70 results in one symmetric and two asymmetric X-shaped STLSs. The shock train, which runs perpendicular to the background wave, is always symmetrical at an incoming Mach number of 1.85 when the wedge is mounted on the lateral wall. A flow phenomenon in which the STLS transforms from asymmetric to symmetric after undergoing rapid movement is observed at an incoming Mach number of 2.70. The mean and root-mean-square (rms) pressure profiles confirm the morphological transformation of the STLS. The dynamic properties of the shock train are analyzed by combining the STLS trajectory with the transient wall pressure. Power spectral-density analysis reveals that the frequency of pressure oscillations is independent of whether the shock train is in the same flow cross section as the background wave and depends only on the incoming Mach number and the backpressure. The three-dimensional steady-state numerical simulation reveals the mutual interference structure of the background wave and shock train.
DOI	10.1103/PhysRevE.109.025103
Indexed By	SCI ; EI
Language	英语
WOS ID	WOS:001171627700009
WOS Research Area	Physics
WOS Subject	Physics, Fluids & Plasmas ; Physics, Mathematical
Funding Organization	National Natural Science Foundation of China {52125603, 12202122, U2341240] ; China Postdoctoral Science Foundation {2023M730854]
Classification	二类/Q1
Ranking	1
Contributor	Wang Z
Citation statistics	Cited Times:1[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/97245
Collection	高温气体动力学国家重点实验室
Affiliation	1.【Wang, Dayi & Wang, Ziao & Chang, Juntao】 Harbin Inst Technol, Harbin 150001, Peoples R China 2.【Yue, Lianjie & Chen, Hao】 Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 3.【Wang, Gang】 China Aerodynam Res & Dev Ctr, Hyperveloc Aerodynam Inst, Mianyang 621000, Peoples R China
Recommended Citation GB/T 7714	Wang, Dayi,Wang, Ziao,Chang, Juntao,et al. Experimental and numerical investigation of three-dimensional shock train topology with differently oriented background waves[J]. PHYSICAL REVIEW E,2024,109,2,:25103.Rp_Au:Wang Z
APA	Wang, Dayi,Wang, Ziao,Chang, Juntao,岳连捷,Wang, Gang,&陈昊.(2024).Experimental and numerical investigation of three-dimensional shock train topology with differently oriented background waves.PHYSICAL REVIEW E,109(2),25103.
MLA	Wang, Dayi,et al."Experimental and numerical investigation of three-dimensional shock train topology with differently oriented background waves".PHYSICAL REVIEW E 109.2(2024):25103.

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