A Study on Air Flow Analysis due to the Shape of Automotive Body

자동차 차체의 형상에 따른 공기 유동해석에 관한 연구

  • Lee, Hyun-Chang (Department of of Vehicle Engineering, Kangwon University) ;
  • Cho, Jae-Ung (Division of Mechanical & Automotive Engineering, Kongju University)
  • 이현창 (강원대학교 자동차공학과) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Received : 2014.03.17
  • Accepted : 2014.05.24
  • Published : 2014.06.30


In this study, the air resistance is studied by using flow analysis near automotive body due to the its shape. Flow velocities of airs entering into inlet plane are two kinds of 70 km/h and 100 km/h. Air resistance in case of high speed driving(100 km/h) becomes higher than regular speed driving(70 km/h) and the resistance in case of the car with wider cross section at front side becomes higher than narrower cross section. By using this analysis result, the shape of automotive body can be effectively designed in order to reduce the air resistance.


Air resistance;Automotive Body;Coefficient of drag;Flow Analysis;Flow velocity


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