- 기저면이 경사진 Ogive실린더의 공력특성에 관한 실험적 연구
- Experimental Study for the Aerodynamic Characteristics of Slanted-Base Ogive Cylinder
- ㆍ 저자명
- 맹주성,양시영,오세진
- ㆍ 간행물명
- 大韓機械學會論文集
- ㆍ 권/호정보
- 1994년|18권 10호|pp.2664-2674 (11 pages)
- ㆍ 발행정보
- 대한기계학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Drag, lift, and pitching moment measurements have been made on a range of slanted-base ogive cylinders, using the KANOMAX wind tunnel and balance system. Test Reynolds numbers(based on model maximum diameter) varied from $0.54{ imes}10^{5}{;}to{;}1.56{ imes}10^{5}$. Crossflow velocity maesurement was conducted by 5-hole pitot tube at $Re_{D}=1.46{ imes}10^{5}$. For two base angle $({ heta}=30$ and 45 deg.), aerodynamic forces and moment were measured with increasing angle of attack(0~30 deg.). Two types of wake flow were observed, a quasisymetric turbulent closure or a longitudinal vortex flow. Aerodynamic characteristics differ dramatically between the two wake types. It was found that the drag, lift and pitching moment coefficients increased with increasing angle of attack.