Journal of Advanced Marine Engineering and Technology

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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A Numerical Analysis of Streamwise Vortices in Turbulent Boundary Layers

주유동방향 와동과 난류경계층과의 상호작용에 관한 수치적 연구

  • 김정한 (부산대학교 기계공학과 대학원) ;
  • 양장식 (부산대학교 기계공학부 및 기계기술연구소) ;
  • 김봉환 (양산대학 기계설비과) ;
  • 이기백 (부산대학교 기계공학부 및 기계기술연구소)
  • Published : 2000.01.01
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Abstract

This paper describes the numerical computations of the interaction between the streamwise vortex and a flat plate 3-D turbulent boundary layer. In the present study, the main interest is in the behavior of the streamwise vortices introduced in turbulent boundary layers. The flow behind a vortex generator is modeled by the information that is avilable from studies on the dalta winglet. An algorithm of the solution of the incompressible Navier-Stokes equations for three-dimensional turbulent flows, together with a two layer turbulent model to resolve the near-wall flow, is based on the method of artificial compressibility. The present results show boundary layer distortion due to vortices, such as strong spanwise flow divergence and boundary thinning, and have a good agreement with the experimental data.

Keywords

References

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