The development of localized disturbances, generated by periodic impulse lifting of three-dimensional surface in the flat plate boundary layer at Reδ1 > 400 is experimentally investigated. It is shown that a large amplitude surface lifting leads simultaneously to the formation of two types of perturbations in the boundary layer: longitudinal localized structures and two wave packets. Spatial development of oscillations at the central frequency of the wave packets is consistent with the linear theory of hydrodynamic stability.
Generation of disturbances in the boundary layer of a flat plate by periodic low-frequency motion of the surface section
2020-01-01
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Development of Localized Disturbances in Flat Plate Boundary Layer
Online Contents | 2001
|Boundary Layer of a Flat Plate
Wiley | 2019
|