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

doi:10.1063/5.0075710

	Experimental study on the evolution of mode waves in laminar boundary layer on a large-scale flat plate
	Liu MK(刘美宽); Han GL(韩桂来); Jiang ZL(姜宗林)
通讯作者	Han, Guilai(hanguilai@imech.ac.cn)
发表期刊	PHYSICS OF FLUIDS
	2022
卷号	34 期号:1 页码:16
ISSN	1070-6631
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.
DOI	10.1063/5.0075710
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000747691700010
关键词[WOS]	TURBULENT TRANSITION ; FLUCTUATING PRESSURE ; WALL BENEATH ; WIND-TUNNEL ; RECEPTIVITY ; RESOLUTION ; STABILITY ; PROGRESS
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
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]
项目资助者	National Key Research and Development Program of China ; 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	Han, Guilai
引用统计	被引频次：8[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/311007/88424
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Liu MK,Han GL,Jiang ZL. 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	刘美宽,韩桂来,&姜宗林.(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	刘美宽,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.

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