Effect of the slot depth on supersonic boundary-layer stabilization

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE

Thermophysics and Aeromechanics Pub Date : 2024-07-29 DOI:10.1134/S0869864324010086

V. I. Lysenko, B. V. Smorodsky, A. D. Kosinov, A. A. Yatskikh

引用次数: 0

Abstract

Influence of streamwise slots with the orientation angle φ = 0 and various depths h (corresponding Reynolds number Re_h = 0–2000) on the stability of the supersonic (M = 2) flat-plate boundary layer with relation to natural disturbances of the first (vorticity) instability mode driving laminar-turbulent transition was investigated experimentally. Experiments shown that such kind of disturbances can be stabilized by small-depth streamwise slots, wherein the maximum stabilization occurs at the Reynolds number (based on the slot depth) of about Re_h ≈ 1000.

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槽深对超音速边界层稳定的影响

实验研究了定向角 φ = 0 和不同深度 h 的流向槽（相应的雷诺数 Reh = 0-2000）对超音速（M = 2）平板边界层稳定性的影响，这些影响与驱动层流-湍流过渡的第一（涡度）不稳定模式的自然扰动有关。实验表明，这种扰动可以通过小深度流向槽来稳定，其中最大的稳定作用发生在雷诺数（基于槽的深度）约为 Reh ≈ 1000 时。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS

CiteScore

0.90

自引率

40.00%

发文量

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.