Experimental study of the influence of external disturbances on the position of the laminar-turbulent transition on swept wings at M = 2

Autor:	Yu. G. Ermolaev, S. A. Shipul, Nikolay Semionov, A. D. Kosinov, Aleksey A. Yatskikh, Alexander N. Semenov, V. L. Kocharin
Rok vydání:	2021
Předmět:	Physics Nuclear and High Energy Physics Radiation Wing Nozzle Mechanics Vortex Physics::Fluid Dynamics symbols.namesake Boundary layer Amplitude Mach number symbols Swept wing Laminar-turbulent transition
Zdroj:	Thermophysics and Aeromechanics. 28:319-325
ISSN:	1531-8699 0869-8643
Popis:	The influence of external vortex disturbances on the position of the laminar-turbulent transition in boundary layers on swept wings at the Mach number M = 2 is experimentally studied. The experiments are performed with two wing models; the sweep angles of the leading edges are 45° and 72°. The vortex disturbances are generated by a wire placed ahead of the nozzles in the subsonic part of the flow. It is found that such disturbances increase the amplitude and change the spectral composition of oscillations in the boundary layer; moreover, they can induce earlier turbulization of the flow.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::32dfc9692286dbb6112518b5d27f43bb https://doi.org/10.1134/s0869864321030021 Zobrazit plný text záznamu Full text from SpringerLink