Laminar Boundary-Layer, Sound Receptivity and Control

  • V. S. Kosorygin
  • R. H. RadeztskyJr.
  • W. S. Saric
Part of the IUTAM Symposia book series (IUTAM)


The receptivity of a laminar boundary layer on a flat plate is experimentally studied in the presence of 2-D roughness and freestream sound. The work is carried out in the ASU Unsteady Wind Tunnel. It is shown that the T-S wave amplitude can be less than that of the smooth-surface case downstream from the roughness due to a superposition of unstable waves. Thus, receptivity studies of localized sources must consider constructive-destructive interference.

Key words

Laminar boundary layer 2-D Roughness T-S waves Control 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • V. S. Kosorygin
    • 1
  • R. H. RadeztskyJr.
    • 2
  • W. S. Saric
    • 2
  1. 1.Institute of Theoretical and Applied Mechanics SB RASNovosibirskRussia
  2. 2.Mechanical and Aerospace EngineeringArizona State UniversityUSA

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