Features of the interaction of disturbances generated in the incoming flow with the leading edge of a straight wing

IF 0.5 4区 工程技术 Q4 ENGINEERING, AEROSPACE Thermophysics and Aeromechanics Pub Date : 2024-07-29 DOI:10.1134/S0869864324010013
M. M. Katasonov, V. V. Kozlov, D. S. Sboev, A. M. Sorokin
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Abstract

In a model experiment, the process of interaction of an external artificial disturbance with the leading edge of a straight wing model was investigated. The characteristics and features of the development of boundary layer disturbances, generated as a result of the interaction of external disturbances, and the blunted leading edge of the wing model have been obtained. The research was carried out in a subsonic low-turbulence wind tunnel using a hot-wire anemometry method for detecting disturbances. Localized disturbances generated in the incoming flow were shown to induce longitudinal streaky structures in the boundary layer of the straight wing. High-frequency wave packets (precursors) appeared at the boundaries (fronts) of longitudinal structures. The dynamics of the development of wave packets and localized longitudinal structures in the boundary layer above the wing profile in a gradient flow was studied.

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入流扰动与直翼前缘相互作用的特点
在模型试验中,研究了外部人工扰动与直翼模型前缘的相互作用过程。获得了外部扰动与机翼模型钝化前缘相互作用产生的边界层扰动的发展特征和特点。研究在亚音速低湍流风洞中进行,采用热线风速测量法检测扰动。研究表明,入流中产生的局部扰动会在直翼的边界层中诱发纵向条纹结构。纵向结构的边界(前沿)出现了高频波包(前兆)。研究了梯度流中机翼剖面上方边界层中波包和局部纵向结构的发展动态。
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来源期刊
Thermophysics and Aeromechanics
Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS
CiteScore
0.90
自引率
40.00%
发文量
29
审稿时长
>12 weeks
期刊介绍: The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.
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