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TsAGI Science Journal

ISSN Druckformat: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2013007866
pages 93-110

PHENOMENON OF FORMATION OF PRESSURE PULSATIONS DURING THE INCIDENCE OF THE SHOCK WAVES ON THE BOUNDARY LAYER

Igor Ivanovich Lipatov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
Renat Yamilovich Tugazakov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia

ABSTRAKT

The internal structure of a laminar boundary layer, detached from a flat plate streamlined by a supersonic flow of a gas (M = 2), upon impact of the shock wave is studied numerically and analytically. The process of formation of the separation region is considered in the framework of the nonstationary Navier-Stokes equations. A detailed picture of the gas flow in this region with a secondary separation is obtained. The phenomenon of initiation of large-scale pressure pulsations on a wall in the separation zone in front of the incidence point of the shock wave is explained.


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