Proceedings of the Korean Society of Marine Engineers Conference (한국마린엔지니어링학회:학술대회논문집)

The Korean Society of Marine Engineering (한국마린엔지니어링학회)
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A Study on Vortical Flow Patterns of a Heaving Foil

히빙익 후류의 유통패턴에 관한 연구

  • 양창조 (한국해양대학교 연구원) ;
  • 김유택 (한국해양대학교 기관시스템공학부) ;
  • 최민선 (목포해양대학교 기관공학부) ;
  • 이영호 (한국해양대학교 기계 정보공학부)
  • Published : 2005.11.01
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Abstract

It is known that an oscillating airfoil can produce a driving force through the generation of a reversed $K\acute{a}rm\acute{a}n$ vortex street, and this can be expected to be a new highly effective propulsion system. We have been examined various conditions such as frequency number, amplitude in NACA 0010. As Strouhal number is greater than 0.08, wake profile with velocity deficit can be transformed into the wake with velocity excess. We also presented the experimental results on the unsteady vortices structure of the heaving airfoil at various parameters.

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