Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Study on the Influence of Wheel Arches, Wheels, and Side Mirrors on Aerodynamic Performance of a Fast Cruising Passenger Car

고속 주행 시 Wheel Arch, Wheel & Side Mirror가 자동차의 공력성능에 미치는 영향에 관한 연구

  • Song, Ki-Sun (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kang, Seung-On (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Park, Hoon-Il (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kee, Jung-Do (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Kim, Kyu-Hong (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Lee, Dong-Ho (School of Mechanical and Aerospace Engineering, Seoul National University)
  • 송기선 (서울대학교 기계항공공학부) ;
  • 강승온 (서울대학교 기계항공공학부) ;
  • 박훈일 (서울대학교 기계항공공학부) ;
  • 기정도 (서울대학교 기계항공공학부) ;
  • 김규홍 (서울대학교 기계항공공학부) ;
  • 이동호 (서울대학교 기계항공공학부)
  • Received : 2011.08.08
  • Accepted : 2012.02.11
  • Published : 2012.09.01
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Abstract

This paper investigates the influence on the aerodynamic performance of a passenger cruising very fast by some specific car body parts such as side mirrors, wheel arches and wheels designed hardly regarding aerodynamics. The magnitude of the contribution of each part is analyzed via on the CFD simulations. YF SONATA, a sedan of Hyundai Motors Company, plays a major role as the baseline car in this research, representing all passenger car. The CFD analysis condition consists of 6 different cases depending on whether each part exists or not. According to the CFD results, there were confirmed that additionally to the body parts' own drag, the car body went through somewhat the consequential increment of the drag by them. Among the 3 parts, wheel is the magnate that not only has the maximal drag but drives the drag of the passenger car to increase most steeply and the next is the side mirror.

Keywords

References

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