Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Influence of Rotating Wheel and Moving Ground Condition to Aerodynamic Performance of 3-Dimensional Automobile Configuration

돌아가는 바퀴 및 이동지면 조건이 3차원 자동차 형상의 공력성능에 미치는 영향에 관한 연구

  • Kang, Seung-On (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Jun, Sang-Ook (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Park, Hoon-Il (School of Mechanical and Aerospace Engineering, Seoul National University) ;
  • Ku, Yo-Cheon (Research Development Division, Hyundai Motors Company) ;
  • Kee, Jung-Do (Research Development Division, Hyundai Motors Company) ;
  • Hong, Dong-Hee (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)
  • 강승온 (서울대학교 기계항공공학부) ;
  • 전상욱 (서울대학교 기계항공공학부) ;
  • 박훈일 (서울대학교 기계항공공학부) ;
  • 구요천 (현대자동차) ;
  • 기정도 (현대자동차) ;
  • 홍동희 (서울대학교 기계항공공학부) ;
  • 김규홍 (서울대학교 기계항공공학부) ;
  • 이동호 (서울대학교 기계항공공학부)
  • Received : 2009.12.23
  • Accepted : 2010.03.27
  • Published : 2010.09.01
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Abstract

This paper gives new conceptual descriptions of drag reduction mechanism owing to rotating wheel and moving ground condition when dealing with automotive aerodynamics. Using Computational Fluid Dynamics (CFD), flow simulation of three dimensional automobile configuration made by Vehicle Modeling Function (VMF) is performed and the influence of wheel arch, wheels, rotating wheel & moving ground condition to the automotive aerodynamic performance is analyzed. Finally, it is shown that rotating wheel & moving ground condition decreases automotive aerodynamic drag owing to the reduction of the induced drag led by the decrease of COANDA flow intensity of the rear trunk flow.

Keywords

References

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