Nonstationary Phenomena in the Region of Shock-Wave Interaction with a Boundary Layer at Transonic Flow Velocities

被引：3
|
作者：
Sidorenko, A. A. [1 ]
Budovskii, A. D. [1 ]
Polivanov, P. A. [1 ]
Vishnyakov, O. I. [1 ]
机构：
[1] Russian Acad Sci, Khristianovich Inst Theoret & Appl Mech, Siberian Branch, Novosibirsk 630090, Russia
来源：
TECHNICAL PHYSICS LETTERS | 2017年 / 43卷 / 06期
基金：
俄罗斯基础研究基金会;
关键词：
PROPER ORTHOGONAL DECOMPOSITION;
D O I：
10.1134/S1063785017060268
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Nonstationary characteristics of detached flow have been experimentally studied during interaction of the boundary layer with a shock wave that appears on a profiled bump in transonic flow. The experiments were performed with variable shock-wave intensity and position in a T-325 wind tunnel. The flow was studied using methods of schlieren imaging, measuring average pressure and its pulsations on the surface of a model, and determining velocity fields by particle image velocimetry. Analysis of the experimental data showed that the observed shock-wave oscillations and flow pulsations in the detachment zone were related to disturbances present in the oncoming boundary layer.
引用
收藏
页码：570 / 573
页数：4
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