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TsAGI Science Journal

ISSN Imprimir: 1948-2590
ISSN En Línea: 1948-2604

TsAGI Science Journal

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

SINOPSIS

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).


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