Experimental Studies of the Impact of Periodic Modulation of the Flow on the Development of Disturbances in the Boundary Layer of a Swept Wing at a M = 2.5
https://doi.org/10.25205/2541-9447-2021-16-1-81-90
Abstract
The results of experimental studies on the impact of periodic flow modulation on the development of natural disturbances and artificial localized wave packets in the boundary layer of a swept wing with a leading edge swept angle of 40 degrees at a Mach number M = 2.5 are presented. The boundary layer was modulated using periodic roughness on the model surface. Artificial wave packets were generated by a pulsed glow discharge. Hot-wire anemometer measurements showed that, according to the experimental conditions, periodic modulation of the boundary layer leads to the stabilization of the development of controlled localized disturbances and to an increase in the growth of natural disturbances.
Keywords
experiment,
supersonic flow,
hot-wire anemometer,
laminar-turbulent transition,
turbulence,
boundary layer,
swept wing
Supporting agencies: The research was carried out within the framework of the Program of Fundamental Scientific Research of the state academies of sciences in 2013-2020 (project No. AAAA-A17-117030610125-7) and was supported by the Grant of the President of the Russian Federation (MK-2491.2019.1). The study was conducted at the Joint Access Center “Mechanics” of ITAM SB RAS
About the Authors
A. A. Yatskikh
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Aleksey A. Yatskikh, PhD (Physics and Mathematics), Junior Researcher, Khristianovich Institute of Theoretical and Applied Mechanics SB RAS; Junior Researcher, Novosibirsk State University
Novosibirsk
A. V. Panina
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Alexandra V. Panina, PhD (Physics and Mathematics), Junior Researcher
Novosibirsk
V. L. Kocharin
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Vasilii L. Kocharin, Junior Researcher
Novosibirsk
Yu. G. Yermolaev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Yury G. Yermolaev, PhD, Senior Fellow
Novosibirsk
A. D. Kosinov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Alexander D. Kosinov, Doctor of Science (Physics and Mathematics), Senior Researcher, Head of Laboratory
Novosibirsk
N. V. Semionov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Nikolai V. Semionov, Doctor of Science (Physics and Mathematics), Senior Researcher, Leading Researcher
Novosibirsk
References
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For citations:
Yatskikh A.A., Panina A.V., Kocharin V.L., Yermolaev Yu.G., Kosinov A.D., Semionov N.V. Experimental Studies of the Impact of Periodic Modulation of the Flow on the Development of Disturbances in the Boundary Layer of a Swept Wing at a M = 2.5. SIBERIAN JOURNAL OF PHYSICS. 2021;16(1):81-90. (In Russ.) https://doi.org/10.25205/2541-9447-2021-16-1-81-90
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