Journal of Ship and Ocean Technology

The Society of Naval Architects of Korea (대한조선학회)
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Laminar-Turbulent Transition Research and Control in Near-wall Flow

  • Boiko A.V. (Dept. of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Chun H.H. (Dept. of Naval Architecture and Ocean Engineering, Pusan National University)
  • Published : 2004.12.01
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Abstract

A response of a swept wing boundary layer to a single free-stream stationary axial vortex of a limited spanwise extent is considered as an example of typical problems that one can find in laminar-turbulent transition research and control. The response is dominated by streamwise velocity perturbations that grow quasi-exponentially downstream. It is shown that the formation of the boundary layer disturbance occurs for the most part close to the leading edge. The disturbance represents itself a wave packet consisted of the waves with characteristics specific for cross-flow instability. However, an admixture of growing disturbances whose origin can be attributed to transient effects and to a distributed receptivity mechanism is also identified.

Keywords

References

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