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Fluid Dynamics
Erschienen in: Fluid Dynamics 4/2020

01.07.2020

Interaction of Stationary Disturbances with Tollmien—Schlichting Waves in a Supersonic Boundary Layer

verfasst von: S. A. Gaponov, N. M. Terekhova

Erschienen in: Fluid Dynamics | Ausgabe 4/2020

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Abstract

The possibility of controlling unsteady disturbances, traveling Tollmien—Schlichting waves, and stationary streamwise structures is studied. The investigation is performed for the flat-plate boundary layer at the freestream Mach number M = 2. The possible enhancement and suppression of the growth of these waves by stationary streaky structures of the stability eigenproblem of supersonic boundary layer is studied. The problem is solved in the local-parallel approximation within the framework of the three-wave resonance interaction. The pumping wave is a stationary, near-streaky formation. It is shown that even in the stability domain Tollmien—Schlichting waves grow under the influence of the streamwise structures. It is established that under certain conditions the effect of stationary disturbances on these waves can be considerable also in the instability domain and the Reynolds number ranges in which the steady disturbances suppress traveling waves are determined.
Nächster Artikel Statistical Description of Intermittency in the Transition Region at the Low Degree of Flow Turbulence

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Metadaten
Titel
Interaction of Stationary Disturbances with Tollmien—Schlichting Waves in a Supersonic Boundary Layer
verfasst von
S. A. Gaponov
N. M. Terekhova
Publikationsdatum
01.07.2020
Verlag
Pleiades Publishing
Erschienen in
Fluid Dynamics / Ausgabe 4/2020
Print ISSN: 0015-4628
Elektronische ISSN: 1573-8507
DOI
https://doi.org/10.1134/S0015462820040059

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