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선체반류 중에서 작동하는 프로펠러에 의한 방향타 유입유동 PIV 계측

PIV Measurements of Rudder Inflow Induced by Propeller Revolution in Hull Wake

  • 백부근 (한국해양연구원 해양시스템안전연구소) ;
  • 김기섭 (한국해양연구원 해양시스템안전연구소) ;
  • 김경열 (한국해양연구원 해양시스템안전연구소) ;
  • 김건도 (한국해양연구원 해양시스템안전연구소) ;
  • 박영하 (한국해양연구원 해양시스템안전연구소)
  • Paik, Bu-Geun (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Kim, Ki-Sup (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Kim, Kyung-Youl (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Kim, Gun-Do (Maritime & Ocean Engineering Research Institute, KORDI) ;
  • Park, Young-Ha (Maritime & Ocean Engineering Research Institute, KORDI)
  • 투고 : 2010.10.13
  • 심사 : 2011.02.07
  • 발행 : 2011.04.20

초록

In the present study, the flow fields in between the propeller and the semi-spade rudder are investigated by using PIV technique to find out the influences of both simulated hull wake and propeller wake on the incident flow to the rudder. The velocity fields are measured at the propeller rotation angle of $180^{\circ}$ and the rudder deflection angles of $0^{\circ}$. Flow fields measured at each rudder deflection angle are analyzed in terms of angle-of-attack against the rudder leading edge. The hull wake increases the angle-of-attack more than that in the uniform inflow condition, forming the angle-of-attack of about $20^{\circ}$ at 0.7R(R=propeller radius) position. The distribution of the angle-of-attack is strongly affected by the stagnation point around the leading edge and camber effect of the rudder. These effects provide asymmetric distribution of angle-of-attack with respect to the leading edge of the rudder.

키워드

참고문헌

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