Experimental Study of the Influence of Unit Reynolds Number on the Laminar-Turbulent Transition on the Model Swept Wing with a Subsonic Leading Edge at M = 2
https://doi.org/10.25205/2541-9447-2021-16-1-44-52
Abstract
Experimental studies of the influence of unit Reynolds number on the laminar-turbulent transition in a supersonic boundary layer of a swept wing with a subsonic leading edge at Mach number 2 are performed. The experiments were performed on a model of a swept wing with a swept angle of the leading edge of 72 degrees and with a 3 % profile with a variable chord length in span. The hot-wire measurements showed that a laminar-turbulent transition in a supersonic boundary layer of a swept wing with a subsonic leading edge occurs earlier (≈ 25÷30 %) than on a model with a supersonic leading edge with the same oncoming flow parameters. It is shown that a change unit Reynolds number insignificant influence the laminar-turbulent transition in the boundary layer of a swept wing with a subsonic leading edge.
Keywords
Supporting agencies: The work is supported by Russian Foundation for Basic Research (grant No. 19-08-00772). The study was conducted at the Joint Access Center “Mechanics” of ITAM SB RAS
About the Authors
V. L. Kocharin
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Vasilii L. Kocharin, Junior Researcher
Novosibirsk
N. L. 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
A. D. Kosinov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Alexander D. Kosinov, Doctor of Science (Physics and Mathematics), Senior Researcher, Head of Laboratory
Novosibirsk
A. A. Yatskikh
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS; Novosibirsk State University
Russian Federation
Russian Federation
Aleksey A. Yatskikh, PhD, Junior Researcher, Khristianovich Institute of Theoretical and Applied Mechanics SB RAS; Junior Researcher, Novosibirsk State University
Novosibirsk
S. A. Shipul
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Sofia A. Shipul, PhD Student
Novosibirsk
Yu. G. Yermolaev
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS
Russian Federation
Russian Federation
Yury G. Yermolaev, PhD, Senior Fellow
Novosibirsk
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Review
For citations:
Kocharin V.L., Semionov N.L., Kosinov A.D., Yatskikh A.A., Shipul S.A., Yermolaev Yu.G. Experimental Study of the Influence of Unit Reynolds Number on the Laminar-Turbulent Transition on the Model Swept Wing with a Subsonic Leading Edge at M = 2. SIBERIAN JOURNAL OF PHYSICS. 2021;16(1):44-52. (In Russ.) https://doi.org/10.25205/2541-9447-2021-16-1-44-52
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