论平板上超音速边界层纵向尾流区受控扰动的相互作用机理

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE

Thermophysics and Aeromechanics Pub Date : 2024-10-17 DOI:10.1134/S0869864324020021

A. D. Kosinov, N. V. Semionov, M. V. Piterimova, A. A. Yatskikh, Yu. G. Yermolaev, B. V. Smorodskii, A. V. Shmakova

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引用次数: 0

摘要

本研究的目的是寻找平板上超音速边界层中波的相互作用机制，该边界层中的流动被一对弱冲击波在尖锐前缘产生的流向扰动所扭曲。分析了在受控扰动局部源功率固定的条件下，非均质边界层中波系发展的线性和弱非线性阶段的振荡时空分布和频率波谱及其波特性。根据实验结果，提出了平板上超音速边界层中由 N 波产生的纵向尾流区域中波相互作用的可能变体。

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On the mechanisms of interaction of controlled disturbances in the longitudinal wake region in a supersonic boundary layer on a flat plate

The present study is aimed at searching for mechanisms of wave interaction in a supersonic boundary layer on a flat plate with the flow being distorted by a streamwise disturbance generated on a sharp leading edge by a pair of weak shock waves. The space and time distributions and the frequency-wave spectra of oscillations and their wave characteristics in the linear and weakly nonlinear phases of wave train development in a nonhomogeneous boundary layer under conditions of a fixed power of the local source of controlled disturbances are analyzed. Based on experimental results, possible variants of wave interaction in a supersonic boundary layer on a flat plate in the region of the longitudinal wake generated by an N-wave are proposed.

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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.