Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Numerical Simulation of Flow Field Around a Rotating Flexible Foil Using the 3D HCIB Method

3차원 HCIB법을 이용한 회전하면서 변형하는 날개 주위 유동해석

  • Shin, Sang-Mook (Dept. of Naval Architecture and Marine Systems Engineering, Pukyong National University) ;
  • Nho, In-Sik (Dept. of Naval Architecture and Ocean Engineering, Chungnam National University)
  • 신상묵 (부경대학교 조선해양시스템공학과) ;
  • 노인식 (충남대학교 선박해양공학과)
  • Published : 2008.08.31
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Abstract

A hybrid Cartesian/immersed boundary code is expanded to simulate flow field around a three-dimensional body which undergoes large dynamic deformation. Immersed boundary nodes are automatically distributed based on the edges crossing triangles on body boundary. Velocity vectors are reconstructed at those immersed boundary nodes along local normal lines to the boundary. The reconstruction of pressure is avoided using the hybrid staggered/non-staggered grid method. The developed code is validated through comparisons with other results on laminar flow over a sphere. The code is applied to simulate flow around a foil which is attached to a body of revolution and rotates under periodic deformation. The periodic variation of the tip vortex is observed and the effects of the deformation on hydrodynamic force acting on the body are investigated.

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References

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