Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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INVESTIGATION FOR THE AERODYNAMIC CHARACTERISTICS OF HIGH SPEED TRAIN PANTOGRAPH WITH COVER

커버 형상을 고려한 고속전철 팬터그래프 공력특성의 수치해석적 연구

  • Kang, H.M. (Korea Aerospace Research Institute, Aerodynamics Team) ;
  • Kim, C.W. (Korea Aerospace Research Institute, Aerodynamics Team) ;
  • Cho, T.H. (Korea Aerospace Research Institute, Aerodynamics Team) ;
  • Kim, D.H. (Korea Aerospace Research Institute, Aerodynamics Team) ;
  • Yoon, S.H. (Korea Railroad Research Institute, Aerodynamics Research Team) ;
  • Kwon, H.B. (Korea Railroad Research Institute, Aerodynamics Research Team)
  • 강형민 (한국항공우주연구원, 공력성능팀) ;
  • 김철완 (한국항공우주연구원, 공력성능팀) ;
  • 조태환 (한국항공우주연구원, 공력성능팀) ;
  • 김동하 (한국항공우주연구원, 공력성능팀) ;
  • 윤수환 (한국철도기술연구원, 공력연구팀) ;
  • 권혁빈 (한국철도기술연구원, 공력연구팀)
  • Received : 2011.11.28
  • Accepted : 2012.08.01
  • Published : 2012.09.30
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Abstract

The aerodynamic performance of the pantograph on a high speed train was compared for different pantograph covers which are designed to block the aero-acoustic noise from the pantograph. For the study, two types of cover are designed: wedge and cone types. The lift force of pantograph with cover was compared with the force of pantograph only. The comparison clarified that the cone type cover increases the sideslip angle of the flow and decreases the lift force considerably. However, the wedge type cover changes the flow direction upward and increases the lift force of the pan head. This increment of lift force compensates the decrement of lift force caused by the blocking of the flow into the pantograph lower frame due to cover. Therefore, in case of the wedge type cover, the overall lift force changes slightly compared with the cone type cover.

Keywords

References

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