图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
俄罗斯空气动力研究所中心学报

ISSN 打印: 1948-2590
ISSN 在线: 1948-2604

俄罗斯空气动力研究所中心学报

DOI: 10.1615/TsAGISciJ.2017024816
pages 317-329

INTERACTION OF MACH WAVES AND BOUNDARY LAYER AT A SUPERSONIC FLOW OVER A PLATE WITH A SHARP LEADING EDGE

Quan Hoang Din
Moscow Institute of Physics and Technology, 9 Institutskiy Per., Dolgoprudny, Moscow Region, 141700, Russian Federation
Ivan Vladimirovich Egorov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation
Alexander Vitalyevich Fedorov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation; Moscow Institute of Physics and Technology (MIPT), 9 Institutskiy Per., Dolgoprudny, Moscow Region, 141700, Russian Federation

ABSTRACT

In the framework of the three-dimensional Navier−Stokes equations, the interaction of Mach waves induced by two-dimensional roughness on a side wall of a wind-tunnel test section with the boundary layer on a flat plate of sharp leading edge is studied numerically at the free-stream Mach number 2.5. It is shown that the Mach waves generate a longitudinal quasi-steady wake propagating in the boundary layer at large distances from the plate leading edge. The wake structure is considered in detail. The numerical results agree well with the known experimental data for mass flow disturbances measured in the T-325 supersonic wind tunnel at the Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences (Novosibirsk, Russia).