Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2003.04a
- /
- Pages.2089-2094
- /
- 2003
Drag Reduction of a Circular Cylinder With O-rings
O-ring 을 이용한 원주의 저항감소에 관한 실험적 연구
- Published : 2003.04.23
Abstract
The flow around a circular cylinder was controlled by attaching O-rings to reduce drag force acting on the cylinder. Four experimental models were tested in this study; one smooth cylinder of diameter D (D=60mm) and three cylinders fitted with O-rings of diameters d=0.0167D, 0.05D and 0.067D with pitches of PPD=1D, 0.5D and 0.25D. The drag force, mean velocity and turbulent intensity profiles in the near wake behind the cylinders were measured for Reynolds numbers based on the cylinder diameter in the range of
Keywords