The Magnus Effect of a Rotating Circular Cylinder near a Plane Wall

벽면근처에서 회전하는 원주의 마그너스 효과

  • 노기덕 (경상대학교 기계항공공학부.해양산업연구소) ;
  • 김광석 (경상대학교 대학원 기계시스템공학과)
  • Published : 2006.12.01

Abstract

The flow around a rotating circular cylinder near a plane wall is investigated by the measurement of the lift acting on the cylinder and by the flow visualization using the hydrogen bubble technique in the circulating water tank. The experimental parameters are the rotating direction of the cylinder, the space ratios H/D$(H/D=0.05\sim0.5)$ between cylinder and plane wall and the velocity ratios $\alpha(\alpha=0\sim{\pm}2.0)$. In the case of clockwise, the lift on the rotating circular cylinder was increased with the reduction of the space ratios and with the velocity ratios, the upper separation point was more shifted in the rotating direction with them. In the case of anticlockwise, the absolute value of the lift on the rotating circular cylinder was increased with the space ratios and with the velocity ratios, the lower separation point was more shifted in the rotating direction with them.

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