Evolution of localized artificial disturbance in 2D and 3D supersonic boundary layers

Aleksey Yatskikh; Yury Yermolaev; Alexander Kosinov; Nikolai Semionov; Alexander Semenov

doi:10.1177/0954410018787120

Evolution of localized artificial disturbance in 2D and 3D supersonic boundary layers

Aleksey Yatskikh, Yury Yermolaev, Alexander Kosinov, Nikolai Semionov, Alexander Semenov

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

The evolution of a controlled broadband wave packet in flat-plate and swept-wing supersonic boundary layers was experimentally investigated at Mach number M = 2. The wave packet was introduced into the boundary layer by a localized pulse electrical discharge. The structure and evolution downstream of the wave packet were studied by hot-wire measurements. It was found that the wave packet has a symmetric shape in a flat-plate boundary layer, whereas there is asymmetry in case of a swept-wing one. The spectral analysis of the development of different modes of the wave packet was provided.

Original language	English
Pages (from-to)	115-123
Number of pages	9
Journal	Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Volume	234
Issue number	1
DOIs	https://doi.org/10.1177/0954410018787120
Publication status	Published - 1 Jan 2020

Keywords

boundary layer
controlled experiment
flat plate
hot-wire measurements
Supersonic flow
swept wing
wave packet
WAVE-PACKETS
INSTABILITY
STABILITY
TURBULENT-SPOT
WAVEPACKETS
TRANSITION
DIRECT NUMERICAL-SIMULATION
HOT-WIRE VISUALIZATION
SHARP

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title = "Evolution of localized artificial disturbance in 2D and 3D supersonic boundary layers",

abstract = "The evolution of a controlled broadband wave packet in flat-plate and swept-wing supersonic boundary layers was experimentally investigated at Mach number M = 2. The wave packet was introduced into the boundary layer by a localized pulse electrical discharge. The structure and evolution downstream of the wave packet were studied by hot-wire measurements. It was found that the wave packet has a symmetric shape in a flat-plate boundary layer, whereas there is asymmetry in case of a swept-wing one. The spectral analysis of the development of different modes of the wave packet was provided.",

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AU - Yatskikh, Aleksey

AU - Yermolaev, Yury

AU - Kosinov, Alexander

AU - Semionov, Nikolai

AU - Semenov, Alexander

PY - 2020/1/1

Y1 - 2020/1/1

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KW - hot-wire measurements

KW - Supersonic flow

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KW - STABILITY

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Evolution of localized artificial disturbance in 2D and 3D supersonic boundary layers

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