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Journal of Applied Mechanics and Technical Physics

, Volume 40, Issue 5, pp 858–864 | Cite as

“Anomalous” nonlinear wave phenomena in a supersonic boundary layer

  • A. D. Kosinov
  • Y. G. Ermolaev
  • N. V. Semionov
Article

Abstract

Nonlinear evolution of high-amplitude periodic disturbances in a boundary layer on a flat plate for Mach numberM=2 is studied. An anomalous downstream evolution of the disturbances is found, quasi-two-dimensional disturbances being most unstable. The obtained phase velocities of the waves are 30–40% greater than the phase velocities of the Tollmien-Schlichting waves. The nonlinear evolution of vortex waves is accompanied by an increase in steady disturbances from the source of controlled vibrations. High-frequency disturbances decay, and a periodic wave train degenerates downstream into a quasiharmonic wave train.

Keywords

Wave Packet Wave Train Initial Disturbance Linear Stability Theory Supersonic Boundary Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic/Plenum Publishers 1999

Authors and Affiliations

  • A. D. Kosinov
  • Y. G. Ermolaev
  • N. V. Semionov

There are no affiliations available

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