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Thermophysics and Aeromechanics

2007 year, number 3

Method laminar-turbulent transition control of supersonic boundary layer on a swept wing

N.V. Semionov and A.D. Kosinov
Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Novosibirsk, Russia
Pages: 337–341


A passive control method for supersonic boundary-layer transition on a swept wing using longitudinal roughness is proposed. Tests were carried out to examine the effect of distributed roughness on the development of flow perturbations and on the laminar-turbulent transition. The method makes it possible to manipulate the transition in a wide range, bringing it either closer to the leading edge of the wing by 30 % or delaying it by 40 %.