Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Cavitating-Flow Characteristics around a Horn-Type Rudder

혼 타 주위의 캐비테이팅 유동 특성에 대한 연구

  • Choi, Jung-Eun (Hyundai Maritime Research Institute, Hyundai Heavy Industries, Co. Ltd.) ;
  • Chung, Seak-Ho (Hyundai Maritime Research Institute, Hyundai Heavy Industries, Co. Ltd.) ;
  • Kim, Jung-Hun (Hyundai Maritime Research Institute, Hyundai Heavy Industries, Co. Ltd.)
  • 최정은 (현대중공업(주) 선박해양연구소) ;
  • 정석호 (현대중공업(주) 선박해양연구소) ;
  • 김정훈 (현대중공업(주) 선박해양연구소)
  • Published : 2007.06.20
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Abstract

The flow characteristics around a horn-type rudder behind an operating propeller of a high-speed large container carrier are studied through a numerical method in fully wetted and cavitating flow conditions. The computations are carried out in a small scale ratio of 10.00(gap space=5mm) to consider the gap effects. The Reynolds averaged Navier-Stokes equation for a mixed fluid and vapor transport equation applying cavitation model are solved. The axisymmetry body-force distribution technique is utilized to simulate the flow behind an operating propeller. The gap flow, the three-dimensional flow separation, and the cavitation are the flow characteristics of a horn-type rudder. The pattern of three-dimensional flow separation is analyzed utilizing a topological rule. The various cavity positions predicted by CFD were shown to be very similar to rudder erosion positions in real ship rudder. The effect of a preventing cavitation device, a horizontal guide plate, is also investigated.

Keywords

References

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