Control of streaky structures by localized blowing and suction

  • Andrey A. Bakchinov
  • Michael M. Katasonov
  • P. Henrik Alfredsson
  • Viktor V. Kozlov
Conference paper
Part of the IUTAM Symposia book series (IUTAM)

Abstract

Control of by-pass transition induced by streaky structures in laminar boundary layer flow is attempted by localized suction and blowing at the wall. It is shown that suction below a low velocity streak and blowing below a high velocity streak may hinder or delay breakdown to turbulence. It is also shown that the timing is important, and that the most effective control is achieved at the front of the longitudinal structure.

Keywords

Dura 

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References

  1. 1.
    Alfredsson, P.H., Matsubara, M. (1996) Streaky structures in transition. In Transitional Boundary Layers in Aeronautics. (ed. Alfredsson, P.H., Matsubara, M ), pp. 374–386. Elsiever Science Publishers.Google Scholar
  2. 2.
    Boiko A.V., Grek G.R., Dovgal A.V., Kozlov V.V. (1999) Origin of turbulence in wall shear layers. Novosibirsk: Nauka. Sib. Predprijatie RAN, -328Google Scholar
  3. 3.
    Westin, K.J.A., Bakchinov, A.A., Kozlov, V.V., Alfredsson, P.H. (1998) Experiments on localized disturbances in a flat plate boundary layer. Part 1. The receptivity and evolution of a localized free stream disturbances. Eur. J. Mech. B/Fluids 17, 823–846Google Scholar
  4. 4.
    Bakchinov, A.A., Westin, K.J.A., Kozlov, V.V., Alfredsson, P.H. (1998) Experiments on localized disturbances in a flat plate boundary layer. Part 2. Interaction between localized disturbances and TS-waves. Eur. J. Mech. B/Fluids 17, 847–873Google Scholar
  5. 5.
    Bakchinov A.A., Grek G.R., Katasonov M.M., Kozlov V.V. (1997) Experimental study of the interaction between streaky structures and high-frequency disturbances. In Proceedings of the Third International Conference on Experimental Fluid Mechanics, Korolev, Moscow region, Russia, pp. 28–33.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Andrey A. Bakchinov
    • 1
  • Michael M. Katasonov
    • 2
  • P. Henrik Alfredsson
    • 1
  • Viktor V. Kozlov
    • 2
  1. 1.Dept. MechanicsKTHStockholmSweden
  2. 2.Institute of Theoretical and Applied MechanicsRussian Academy of Sciences, Siberian BranchNovosibirskRussia

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