Experimental study on the evolution of mode waves in laminar boundary layer on a large-scale flat plate

doi:10.1063/5.0075710

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Experimental study on the evolution of mode waves in laminar boundary layer on a large-scale flat plate
	Liu, Meikuan 1,2; Han, Guilai 1,2; Jiang, Zonglin 1,2
刊名	PHYSICS OF FLUIDS
	2022
卷号	34 期号:1 页码:16
ISSN号	1070-6631
DOI	10.1063/5.0075710
通讯作者	Han, Guilai(hanguilai@imech.ac.cn)
英文摘要	In this research, to study the hypersonic boundary-layer transition, experiments were conducted on a large-scale flat plate with a length of 3.2 m at a zero angle of attack in the hypersonic shock tunnel duplicating flight conditions. Surface-mounted piezoelectric pressure sensors and coaxial thermocouples were, respectively, used to measure the pressure fluctuations and wall heat transfer. The spatial distribution of heat transfer was used to distinguish the transition. Under the test conditions of Ma = 7.0, T-0 = 2120 K, and Re-& INFIN; = 6.08 x 10(5 )m(-1), no transition occurred, and under the test conditions of Ma = 7.0, T-0 = 2220 K, and Re-& INFIN; = 1.23 x 10(6 )m(-1), the transition position was s = 2.06 m. The repeatability of the experiment was found to be good. Furthermore, focus was placed on the spectral and spatial/temporal evolution characteristics of pressure fluctuations in the laminar boundary layer. The experiment captured the three frequency distributions of mode waves in the laminar flow zone. Among the mode waves distributed in the three frequency bands, the low-/high-frequency bands were dominant, and the mid-frequency band exhibited a staged contribution. The amplitude energy percentages of the high- and low-frequency mode waves exhibited opposite trends in both time and space, which means that the disturbance energy will be distributed among the various harmonics in the laminar stage.
资助项目	National Key Research and Development Program of China[2016YFA0401201] ; National Key Research and Development Program of China[2019YFA0405204] ; National Natural Science Foundation of China[12132017] ; National Natural Science Foundation of China[11872066] ; National Natural Science Foundation of China[11727901]
WOS关键词	TURBULENT TRANSITION ; FLUCTUATING PRESSURE ; WALL BENEATH ; WIND-TUNNEL ; RECEPTIVITY ; RESOLUTION ; STABILITY ; PROGRESS
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:000747691700010
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/88423]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Han, Guilai
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Liu, Meikuan,Han, Guilai,Jiang, Zonglin. Experimental study on the evolution of mode waves in laminar boundary layer on a large-scale flat plate[J]. PHYSICS OF FLUIDS,2022,34(1):16.
APA	Liu, Meikuan,Han, Guilai,&Jiang, Zonglin.(2022).Experimental study on the evolution of mode waves in laminar boundary layer on a large-scale flat plate.PHYSICS OF FLUIDS,34(1),16.
MLA	Liu, Meikuan,et al."Experimental study on the evolution of mode waves in laminar boundary layer on a large-scale flat plate".PHYSICS OF FLUIDS 34.1(2022):16.