Stability of a three-dimensional boundary layer with s-shaped spanwise velocity profiles

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Abstract

The hydrodynamic stability of the flow with S-shaped spanwise velocity profiles simulating an incompressible flow in three-dimensional boundary layers is analyzed in a wide range of Reynolds numbers. The existence of an instability different from the known crossflow vortices and Tollmien-Schlichting waves is confirmed. The boundaries of the instabilities are estimated in terms of the wave vector angle.

About the authors

A. V. Boiko

Khristianovich Institute of Theoretical and Applied Mechanics SB RAS

Email: boiko@itam.nsc.ru
Novosibirsk, Russia

N. V. Demidenko

Khristianovich Institute of Theoretical and Applied Mechanics SB RAS

Email: demidenko@itam.nsc.ru
Novosibirsk, Russia

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