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여경차의 공력 성능 강화를 위한 차량 전면 부분 개발에 대한 연구
김용년(Yongnyun Kim),하종백(Jongpaek Ha),박정렬(Jeongryul Park) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
Fuel economy is one of important factor to buy/select a vehicle by customer and develop a vehicle by Auto company because cost of fuel is increased continuously. And aerodynamics, one of parts to improve fuel economy also has importance in the vehicle development. Development and purchase point of Mini vehicle, smallest class in the vehicle grade, are focused on fuel economy and most of global auto company makes efforts to improvement of fuel economy thru Aerodynamic performance enhancement. Aero development is quite limited in mini vehicle development because this vehicle has lots of regulation in the dimensional standard and it is not easy to approach to optimize exterior shape because of characteristic of mini vehicle. There are lots of development to use additional parts to recovery dimensional limitation. We studied to enhance performance of Aero using front tire deflector, CRFM baffles, Engine room under cover as Additional parts for for-body development. In this paper, Matiz Creative vehicle developed in GM Daewoo Auto & technology is studied to improve its Aero performance in the stage for midcycle enhancement. We performed CFD simulation and wind tunnel test for this development.
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