Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Wind tunnel study on drag reduction of a 5 ton truck using additive devices

유동제어용 부착물을 이용한 5톤 화물차의 항력 감소에 관한 실험적 연구

  • 이의재 (POSTECH, 기계공학과) ;
  • 황배근 (POSTECH, 기계공학과) ;
  • 김정재 (POSTECH, 기계공학과) ;
  • 이상준 (POSTECH, 기계공학과, 첨단유체공학연구센터)
  • Received : 2015.03.04
  • Accepted : 2015.03.16
  • Published : 2015.04.30
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Abstract

There have been many attempts to reduce the cost of transportation. Especially, drag reduction of heavy vehicles has enormous influence on energy saving by reducing the driving power of the vehicles. In this study, the effects of drag-reducing additive devices such as side skirt, boat tail and cab-roof fairing on the drag reduction of a 5 ton truck model were experimentally investigated. The aerodynamic performance of these flow-control devices attached to heavy vehicle was evaluated through wind tunnel test. In addition, flow patterns around the truck model were visualized by using smoke tube method. The drag coefficient is reduced by up to 5.7%, 7.16% and 22.2% by the side skirt, boat tail and cab-roof fairing, respectively. The interactive effect of the side skirt and boat tail was also investigated.

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References

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