In this article, the results of research about stationary and secondary disturbances development behind the localized and two-dimensional roughness elements are presented. It is shown that the two-dimensional roughness element has a destabilizing effect on the disturbances induced by the three-dimensional roughness element lying upstream. In this case, the two-dimensional roughness element causes the appearance of stationary structures, and then secondary perturbations, whose frequency range lies lower than in the case of the stationary vortices excited by a three-dimensional roughness element.
Influence of two-dimensional roughness element on boundary layer structure in the favourable pressure gradient region of the swept wing
2020-01-01
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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