TY - CONF

T1 - On the artificial disturbance evolution in 2D/3D spanwise modulated boundary layers at Mach 2 and 2.5

AU - Panina, Alexandra

AU - Kosinov, A. D.

AU - Semionov, N. V.

AU - Yermolaev, Yu G.

PY - 2015

Y1 - 2015

N2 - The paper presented the results on the generation and development of the wave train in spanwise modulated supersonic boundary layer at Mach 2 and 2.5 which obtained experimentally in the same conditions of controlled experiment. In experiments on the flat plate with roughness it was obtained that at the Mach number M = 2.5 both a subharmonic and fundamental wave packet develops almost linearly, whereas at the Mach number M = 2.0 there is competition between the two mechanisms of unstable waves interaction. It was obtained that in the boundary layer on swept wing the roughness presence can leads to the stabilization of the wave packet development at fundamental and subharmonic frequency in the downstream direction.

AB - The paper presented the results on the generation and development of the wave train in spanwise modulated supersonic boundary layer at Mach 2 and 2.5 which obtained experimentally in the same conditions of controlled experiment. In experiments on the flat plate with roughness it was obtained that at the Mach number M = 2.5 both a subharmonic and fundamental wave packet develops almost linearly, whereas at the Mach number M = 2.0 there is competition between the two mechanisms of unstable waves interaction. It was obtained that in the boundary layer on swept wing the roughness presence can leads to the stabilization of the wave packet development at fundamental and subharmonic frequency in the downstream direction.

UR - http://www.scopus.com/inward/record.url?scp=85085775320&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85085775320

T2 - 15th European Turbulence Conference, ETC 2015

Y2 - 25 August 2015 through 28 August 2015

ER -