SPECIFIC FEATURES OF WAVE TRAIN DEVELOPMENT IN A STREAMWISE DISTURBANCE OF A SUPERSONIC BOUNDARY LAYER

被引：0
|
作者：
Kosinov, A. D. [1 ]
Semionov, N. V. [1 ]
Piterimova, M. V. [1 ]
Yatskikh, A. A. [1 ]
Yermolaev, Yu. G. [1 ]
Smorodsky, B. V. [1 ]
Shmakova, A. V. [1 ]
机构：
[1] Russian Acad Sci, Khristianovich Inst Theoret & Appl Mech, Siberian Branch, Novosibirsk, Russia
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2024年 / 65卷 / 04期
基金：
俄罗斯科学基金会;
关键词：
supersonic boundary layer; flat plate; wave train; weak shock waves; streamwise disturbances; FLAT-PLATE; MACH WAVE; STABILITY; ROUGHNESS; FLOW;
D O I：
10.1134/S0021894424040084
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Distributions of the amplitude of controlled disturbances in space and time and their frequency-wave characteristics are obtained from experimental results on weakly nonlinear development of the wave train in the region of a stationary wake inside the boundary layer on a flat plate at the Mach number M = 2. A stationary streamwise disturbance is generated by a pair of weak oblique shock waves. Controlled disturbances are inserted into the flow by a local high-frequency glow discharge located inside the model. The development of controlled disturbances is analyzed on the basis of the linear theory of hydrodynamic stability. Typical resonant wave triplets are identified. It is found that flow inhomogeneity suppresses the mechanisms of interaction of controlled disturbances.
引用
收藏
页码：647 / 664
页数：18
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