Characteristics of 3D instability of a 35-degree swept wing to CF and TS modes. Experiment and theory

Authors: Borodulin, V. I., Ivanov, A. V., Kachanov, Y.S., Örlü, R., Hanifi, A., Hein, S.
Document Type: Conference
Pubstate: Published
Journal: AIP Conf. Proc.
Volume: 1770   030054
Year: 2016


An extensive experimental investigation of linear evolution of Cross-Flow (CF) and Tollmien-Schlichting (TS) modes of 3D boundary layer oscillations on a swept wing has been carried out. TS-instability characteristics have been studied experimentally for the first time. The characteristics of development of the two kinds of instability modes are compared with calculations and display a very good agreement. The whole dataset may be used for promotion of theoretical methods of investigation of laminar-turbulent transition in swept wing boundary layers.