Gas Injection and Suction Effect on the Instability of a Supersonic Boundary Layer

被引：0
|
作者：
Novikov, A. V. [1 ,2 ]
Obraz, A. O. [1 ,2 ]
Timokhin, D. A. [2 ]
机构：
[1] Cent Aerohydrodynam Inst TsAGI, Zhukovskii 140180, Moscow Oblast, Russia
[2] Moscow Inst Phys & Technol, Dolgoprudnyi 141701, Moscow Oblast, Russia
来源：
FLUID DYNAMICS | 2023年 / 58卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
supersonic flows; injection; suction; linear stability theory; TRANSITION;
D O I：
10.1134/S001546282260184X
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
present the results of an investigation of the boundary layer stability on a flat plate having a region of gas injection/suction normal to the wall at a large supersonic freestream Mach number. The laminar flow past a flat plate having a region of distributed injection/suction of fixed intensity is modeled numerically using the integration of Navier-Stokes equations. The unstable disturbances in the boundary layer distorted by injection/suction are analyzed within the framework of the linear stability theory and the e(N) method for compressible flows. High-frequency disturbances belonging to the plane second mode of the boundary layer, which are the most unstable at high velocities, are considered. It is shown that gas injection/suction leads to a nonmonotonic variation of disturbance growth rates with the appearance of stabilization/destabilization regions, as compared with the case in which injection/suction is absent.
引用
收藏
页码：232 / 239
页数：8
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