| 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)
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| Corresponding Author | Han, Guilai([email protected]) |
| Source Publication | PHYSICS OF FLUIDS
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| 2022 | |
| Volume | 34Issue:1Pages:16 |
| ISSN | 1070-6631 |
| Abstract | 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000747691700010 |
| WOS Keyword | TURBULENT TRANSITION ; FLUCTUATING PRESSURE ; WALL BENEATH ; WIND-TUNNEL ; RECEPTIVITY ; RESOLUTION ; STABILITY ; PROGRESS |
| WOS Research Area | Mechanics ; Physics |
| WOS Subject | Mechanics ; Physics, Fluids & Plasmas |
| Funding Project | 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] |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| Classification | 一类/力学重要期刊 |
| Ranking | 1 |
| Contributor | Han, Guilai |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/88424 |
| Collection | 高温气体动力学国家重点实验室 |
| Recommended Citation 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.Rp_Au:Han, Guilai |
| 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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| Jp2022FA573_2022_Exp（5472KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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