Experimental Study of Disturbances Generated by the Surface Vibrations of a Localized Region in the Boundary Layer of the Swept-wing

被引：0
|
作者：
Pavlenko, A. M. [1 ]
Katasonov, M. M. [1 ]
Kozlov, V. V. [1 ]
Sorokin, A. M. [1 ]
机构：
[1] RAS, Khristianovich Inst Theoret & Appl Mech, SB, Inst Skaya Str 4-1, Novosibirsk 630090, Russia
来源：
INTERNATIONAL CONFERENCE ON THE METHODS OF AEROPHYSICAL RESEARCH (ICMAR 2018) | 2018年 / 2027卷
基金：
俄罗斯科学基金会;
关键词：
WAVE-PACKETS; EVOLUTION; NONSWEPT;
D O I：
10.1063/1.5065100
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The origin and evolution of hydrodynamic perturbations generated by three-dimensional vibrating surface in the swept wing boundary layer under conditions of low turbulence of the incoming flow is experimentally investigated in a subsonic wind tunnel. The results are obtained using the hot-wire anemometry. It is found, that vibrator's work produce perturbations named streaky structures consisting of a localized longitudinal structure and wave packets on its fronts. Separation of laminar boundary layer induces the growth of wave packet followed by near-wall flow turbulization. The influence of the pressure gradient and the secondary flow on the evolution of simulated disturbances is studied in detail.
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页数：7
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