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TsAGI Science Journal

ISSN Imprimer: 1948-2590
ISSN En ligne: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2014012226
pages 431-450

EFFECTS OF MASS TRANSFER ON PROPAGATION OF DISTURBANCES IN A HYPERSONIC FLOW OVER THE WING WITH POINT OF INFLECTION OF A LEADING EDGE

Georgiy Nikolaevich Dudin
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation
Aleksey Vyacheslavovich Ledovskiy
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky 140180, Russia

RÉSUMÉ

The flow in a three-dimensional laminar boundary layer on a thin wing with a point of inflection of the leading edge is investigated in the case of strong viscous−inviscid interaction. The propagation of induced pressure disturbances is considered on the basis of the analysis of characteristic surfaces. Numerical solutions to the equations of the boundary layer on thin semi-infinite wings in a hypersonic flow of a viscous gas are found. The velocities of propagation of disturbances at different mass transfer rates on the wing surface, different temperature factors, and leading-edge sweep angles are determined.


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