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“Vortex Dynamics“ of a Vortex Ring Introduced into a Laminar Boundary Layer

  • Hiroshi Maekawa
  • Hajime Takami
  • Takahiro Nishioka
Conference paper
Part of the IUTAM Symposia book series (IUTAM)

Summary

In the present work, the motion of a single vortex ring introduced in a laminar boundary layer was observed by means of flow visualization. The turbulent flow evolves from the vortex ring depends on the initial configuration of the vortex ring in a laminar boundary layer. The initial evolution process is strongly dependent on the direction of circulation of the vortex ring in the layer. Furthermore, the turbulent region evolves from the primary vortex was investigated using pseudo-synchronized hot-wire measurements. Breakdown of the vortex ring in a laminar boundary layer leads to the high fluctuation velocity fields within the turbulent bloblike structure.

Keywords

Vortex Ring Boundary Layer Transition Vortex Dynamics 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1995

Authors and Affiliations

  • Hiroshi Maekawa
    • 1
  • Hajime Takami
    • 1
  • Takahiro Nishioka
    • 2
  1. 1.Department of Mechanical and Control EngineeringThe University of Electro-CommunicationsChofu, Tokyo 182Japan
  2. 2.Hitachi Co. Ltd.Ibaragi 315Japan

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