대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2002년도 학술대회지
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- Pages.565-568
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- 2002
양력 효과를 고려한 MIRA model 후미의 저저항 다목적 최적설계
Multi-objective Optimal Design for the Low Drag Tail Shape of the MIRA model with the Lift Effect taken into account
- Lee Juhee (CD-adapco Korea) ;
- Lee Kyunghuhn (CD-adapco Korea) ;
- Kim Joonbae (CD-adapco Korea)
- 발행 : 2002.08.01
초록
In the flow analysis around a bluffbody such as road vehicles, drag reduction has been of the primary concern mainly due to the effect on fuel economy. To reduce the drag, which is mostly due to the pressure difference caused by the flow separation, the location of the separation and eddy sizes are controlled. However, less attention has been given to the effect of the lift. The effect of lift may cause the driving stability problem of the vehicle at high speed white heavy downward effect of lift together with the vehicle weight may require more power to drive the vehicle forward. It is considered worthwhile to pursue the optimal design of the low drag tail shape of the MIRA model while taking the lift effect into account, even though it is considered as a reference. To this end, a commercial multi-objective optimization code, FRONTIER, Is used together with the CFD code, STAR-CD. It is hoped that the results will provide more insight into the flow field around the bluffbody as transportation means.
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