Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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A COMPUTATIONAL STUDY ABOUT THE ASYMMETRIC AERODYNAMIC EVOLUTION AROUND A CIRCULAR CYLINDER CAUSED BY A MOVING WALL

이동 벽면에 의한 원형 실린더의 비대칭적 공력 발달에 관한 전산연구

  • 정재윤 (한국항공대학교 항공우주 및 기계공학과) ;
  • 장조원 (한국항공대학교 항공우주공학과)
  • Published : 2006.09.01
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Abstract

A Computational study was carried out in order to investigate the moving wall effect of a circular cylinder at a Reynolds number of $2.0{\times}10^4$. The viscous-incompressible Navier-Stokes equations and Spalart-Almaras turbulent model of the commercial CFD code were adopted for this numerical analysis. The moving wall was set parallel with the freestream, and moving speed was equal to the freestream velocity. The gap ratio is defined as the distance ratio between the circular cylinder diameter and the height from the moving wall. The results show that there is vortex shedding over the critical gap ratio and aerodynamic loads including amplitude and the Strouhal number change according to the gap ratio.

Keywords

References

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