Experiments on the stability of Tollmien-Schlichting waves.

Authors: Klingmann, G.B, Boiko, A.V., Westin, K.J.A., Kozlov, V.V, Alfredsson, P.H.
Document Type: Article
Pubstate: Published
Journal: Eur. J. Mech./Fluids
Volume: 12   493-514
Year: 1993


The stability of wave disturbances in a Blasius boundary layer are studied experimentally. Under well controlled conditions the waves are only slightly modified compared to parallel flow theory. This is in contrast to previous experiments. Inappropriate leading edge conditions may have affected earlier studies, as these conditions have a strong influence on the stability characteristics of Tollmien-Schlichting waves.