INVESTIGATIONS OF HIGH-SPEED BOUNDARY LAYER STABILIZATION BY USING POROUS COATINGS (REVIEW)

被引：0
|
作者：
Lukashevich, S. V. [1 ]
Morozov, S. O. [1 ]
Shiplyuk, A. N. [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 | 2023年 / 64卷 / 04期
关键词：
boundary layer stability; porous coatings; laminar-turbulent transition; experiment; simulation; 2ND-MODE ATTENUATION; ACOUSTIC PROPERTIES; DISTURBANCES; STABILITY;
D O I：
10.1134/S002189442304003X
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Activities aimed at studying stabilization of a high-speed boundary layer with the use of porous coatings are reviewed. All types of coatings used in experimental research are considered. It is demonstrated that a porous coating with optimal parameters can stabilize the second mode of disturbances to a large extent and delay the laminar-turbulent transition in a high-speed boundary layer. A review of numerical investigations of porous coatings is presented, and it is shown that special boundary conditions are imposed for porous coating modeling; otherwise, the flow has to be calculated in each pore of the coating. The major part of results obtained on the basis of the linear stability theory and in direct numerical simulations agree well with experimental data. Examples of methods of porous coating optimization and of using promising metamaterials are provided.
引用
收藏
页码：575 / 590
页数：16
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