The phenomenon of wave breakdown is defined as the onset of a violent small-scale secondary instability developing on a large-scale primary disturbance of wave-like traveling type. It is suggested that breakdown together with the ensuing violent mixing process (a turbulent "burst") constitutes the dominant nonlinear mechanism for the fluctuating velocity field in a turbulent boundary layer. A burst regeneration mechanism is proposed whereby one breakdown can excite large velocity defects in the shear flow which then may trigger a new breakdown, thus leading to self-maintenance of the turbulence.

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  • Corporate Authors:

    Society for Industrial and Applied Mathematics

    3600 Market Street
    Philadelphia, PA  United States  19104-2688
  • Authors:
    • Landahl, M T
  • Publication Date: 1975-6

Media Info

  • Features: Appendices;
  • Pagination: p. 735-756
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00126800
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Nov 5 1975 12:00AM