Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

THRUST GENERATION AND PROPULSIVE EFFICIENCY OF A BIOMIMETIC FOIL MOVING IN A LOW REYNOLDS NUMBER FLOW

저 레이놀즈 수에서 이동하는 생체모사익의 추력 생성 및 추진효율

  • 안상준 (한양대학교 기계기술연구소) ;
  • 최종혁 (한양대학교 기계공학과 대학원) ;
  • 맹주성 (한양대학교 기계공학부) ;
  • 한철희 (충주대학교 항공 기계설계학과)
  • Received : 2009.12.15
  • Accepted : 2010.04.16
  • Published : 2010.06.30
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Abstract

In this paper, the fluid dynamic forces and performances of a moving airfoil in the low Reynolds number flow is addressed. In order to simulate the necessary propulsive force for the moving airfoil in a low Reynolds number flow, a lattice-Boltzmann method is used. The critical Reynolds and Strouhal numbers for the thrust generation are investigated for the four propulsion types. It was found that the Normal P&D type produces the largest thrust with the highest efficiency among the investigated types. The leading edge of the airfoil has an effect of deciding the force production types, whereas the trailing edge of the airfoil plays an important role in augmenting or reducing the instability produced by the leading edge oscillation. It is believed that present results can be used to decide the optimal propulsion types for the given Reynolds number flow.

Keywords

References

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