Linear and nonlinear development of controlled disturbances in the supersonic boundary layer on a swept wing at Mach 2.5

G. L. Kolosov, A. D. Kosinov

Research output: Contribution to journalConference articlepeer-review

Abstract

Experimental data on the linear and nonlinear wave train development in 3D supersonic boundary layer over a 45° swept-wing at Mach number 2.5 are presented. Travelling artificial disturbances were introduced in the boundary layer by periodical glow discharge at frequencies 10 and 20 kHz. The spatial-temporal and spectral-wave characteristics of the wave train of unstable disturbances in the linear region are obtained. It is shown that the additional peaks in β'-spectra arise for both subharmonic and fundamental frequencies. The experiments indicate the presence of subharmonic resonance mechanism in 3D boundary layer at Mach number 2.5.

Original languageEnglish
Article number022005
JournalJournal of Physics: Conference Series
Volume754
Issue number2
DOIs
Publication statusPublished - 27 Oct 2016
EventAll-Russian Conference with the School for Young Scientists Thermophysics and Physical Hydrodynamics 2016, TPH 2016 - Yalta, Crimea, Ukraine
Duration: 19 Sep 201625 Sep 2016

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