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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.9
- 수록면
- 8 - 13 (6page)
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초록· 키워드
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Drag reduction of a running vehicle is very important issue for the energy savings and emission reduction of its power train. Especially for a solar powered electric vehicle, the drag reduction and weight lightening are two serious problems to be solved to extend its driving distance under the given energy condition. In this study, the ground effect of an airfoil shaped road vehicle was studied for an optimum body design of an ultra-light solar powered electric vehicle. Clark-Y airfoil type was adopted to the body shape of the model vehicle to reduce aerodynamic drag.
From the study, it was found that the drag of the model vehicle was reduced as the height(h) between ground and the lower surface of the model vehicle was decreased. It is due to the reduction of the down-wash decreasing the induced drag of the vehicle. The lift was also decreased as the height decreased. It is due to the turbulent boundary layer developed beneath the vehicle body. The drag is classified into two types; the form and friction drag. The fraction of form drag to friction one is 76 to 24 on the model vehicle. As the height(h) of the model vehicle from the ground surface increases the form drag also increases but the friction drag is in reverse.
From the study, it was found that the drag of the model vehicle was reduced as the height(h) between ground and the lower surface of the model vehicle was decreased. It is due to the reduction of the down-wash decreasing the induced drag of the vehicle. The lift was also decreased as the height decreased. It is due to the turbulent boundary layer developed beneath the vehicle body. The drag is classified into two types; the form and friction drag. The fraction of form drag to friction one is 76 to 24 on the model vehicle. As the height(h) of the model vehicle from the ground surface increases the form drag also increases but the friction drag is in reverse.
목차
1. 서론
2. 익형동체 형상과 공력특징
3. 수치해석 연구를 위한 해석기법과 조건
4. 연구결과 및 고찰
5. 결론
References
참고문헌 (7)
참고문헌 신청
1. [학술지(정기간행물)] - Kim, C.H. / 1998 / A Numerical Study on the Aerodynamic Effects of a Rear-Side Spoiler on the Driving Stability of a Passenger Car / Journal of SNUT 47 : 113 ~ 124
2. [학술지(정기간행물)] - C. H. KIM / 2005 / AERODYNAMIC EFFECT OF ROOF-FAIRING SYSTEM ON A HEAVY-DUTY TRUCK / International Journal of Automotive Technology 6 (3) : 221 ~ 227
3. [인터넷자원] - / / http://airfoiltools.com/airfoil/details?airfoil=clarky-il
4. [단행본] - Barnard, R.H. / 1996 / Road Vehicle Aerodynamic Design / Addison Wesley Longman Ltd
5. [보고서] - Concentration Heat And Momentum Ltd / 2011 / PHOENICS Technical Report (TR/326)
2. [학술지(정기간행물)] - C. H. KIM / 2005 / AERODYNAMIC EFFECT OF ROOF-FAIRING SYSTEM ON A HEAVY-DUTY TRUCK / International Journal of Automotive Technology 6 (3) : 221 ~ 227
3. [인터넷자원] - / / http://airfoiltools.com/airfoil/details?airfoil=clarky-il
4. [단행본] - Barnard, R.H. / 1996 / Road Vehicle Aerodynamic Design / Addison Wesley Longman Ltd
5. [보고서] - Concentration Heat And Momentum Ltd / 2011 / PHOENICS Technical Report (TR/326)
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