Evolution of wave packets in supersonic flat-plate boundary layer
A.A. Yatskikh1, Yu.G. Ermolaev2, A.D. Kosinov1,2, and N.V. Semionov2
1Novosibirsk State University, Novosibirsk, Russia
2Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
E-mail: yermol@itam.nsc.ru
Keywords: supersonic boundary layer, wave packet, laminar-turbulent transition
Pages: 17–27
Abstract
Results of an experimental study of the evolution of short-duration isolated wave packets in flat-plate boundary layer at Mach number M = 2 are reported. The influence of the wave packets on the laminar-turbulent transition onset is examined. Interaction of the wave packets with natural disturbances is studied. The spatio-wave structure of the wave packets is investigated in detail. The spreading angle of the wave pack-ets and their propagation velocities are evaluated.
DOI: http://dx.doi.org/10.1134/S0869864315010023
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