27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS2010-P2.3

EXPERIMENTS OF CROSS-FLOW INSTABILITY IN A SWEPT-WING BOUNDARY LAYER

S. -H. Zuo, Y. Yang, D. Li
NPU, China

Keywords: cross-flow instability, sublimation method, artificial roughness, transition control

Stationary cross-flow instabilities in the boundary layer of a swept wing with and without 3D artificial leading edge roughness were investigated in two different Wind Tunnels. Sublimation method was used for flow visualization, and some elementary results including the harmonics appearance and transition suppression by a control roughness were obtained.

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