6. Physics of a Fluid, Neutral and Ionized Gases

SPATIAL-WAVE STRUCTURE OF CONTROLLED DISTURBANCES IN 3D SUPERSONIC BOUNDARY LAYER

Gleb L. Kolosov
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
kolosov@itam.nsc.ru
Aleksandra V. Panina
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
avpanina@itam.nsc.ru
Aleksandr D. Kosinov
1. Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
kosinov@itam.nsc.ru
The material was received by the Editorial Board: 15.07.2011
Results of experimental investigation of controlled disturbance excitation in the boundary layer of thing swept wing at Mach number M = 2 are presented. Regions of the linear and nonlinear natural pulsation development are determined. For the first time spatial-wave structure of controlled disturbances generated by local pulsation source is studied in detail in the linear region of laminar-turbulent transition. It is found, that maximum of artificial oscillation amplitude is localized in normal direction regarding to the swept wing surface as for spatial distributions as well as for most powerful part of wave spectra.

Keywords:
supersonic boundary layer, instability, wave packets, laminar-turbulent transition.
УДК 532.526

SPATIAL-WAVE STRUCTURE OF CONTROLLED DISTURBANCES IN 3D SUPERSONIC BOUNDARY LAYER
References: Kolosov G. L., Panina A. V., Kosinov A. D., Yermolaev Yu. G., Semionov N. V. SPATIAL-WAVE STRUCTURE OF CONTROLLED DISTURBANCES IN 3D SUPERSONIC BOUNDARY LAYER. Vestnik NSU. Series: Physics. 2011, vol. 6, no. 4. P. 5–15 (in Russ.). DOI: 10.54362/1818-7919-2011-6-4-5-15