Linear and nonlinear development of controlled disturbances in the supersonic boundary layer on a swept wing at Mach 2.5

被引：0
|
作者：
Kolosov, G. L. [1 ,2 ]
Kosinov, A. D. [1 ,2 ]
机构：
[1] Russian Acad Sci, Khristianovich Inst Theoret & Appl Mech, Siberian Branch, Inst Skaya Str 4-1, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
来源：
ALL RUSSIAN CONFERENCE WITH THE SCHOOL FOR YOUNG SCIENTISTS THERMOPHYSICS AND PHYSICAL HYDRODYNAMICS - 2016 | 2016年 / 754卷 / 1-10期
基金：
俄罗斯基础研究基金会;
关键词：
TRANSITION; EVOLUTION; STABILITY;
D O I：
10.1088/1742-6596/754/2/022005
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Experimental data on the linear and nonlinear wave train development in 3D supersonic boundary layer over a 45 degrees swept-wing at Mach number 2.5 are presented. Travelling artificial disturbances were introduced in the boundary layer by periodical glow discharge at frequencies 10 and 20 kHz. The spatial-temporal and spectral-wave characteristics of the wave train of unstable disturbances in the linear region are obtained. It is shown that the additional peaks in beta'-spectra arise for both subharmonic and fundamental frequencies. The experiments indicate the presence of subharmonic resonance mechanism in 3D boundary layer at Mach number 2.5.
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页数：7
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