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

The Society of Naval Architects of Korea (대한조선학회)
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Hull-Form Development of a Twin-Skeg Large Ro-Pax Ferry

트윈스케그 적용 대형 로팩스선의 선형개발

  • Lee, Hwa Joon (Technical Engineering Team, Samsung Heavy Industries Co., Ltd.) ;
  • Jang, Hag-Soo (Technical Engineering Team, Samsung Heavy Industries Co., Ltd.) ;
  • Hong, Chun-Beom (Marine Research Institute, Samsung Heavy Industries Co., Ltd.) ;
  • Ahn, Sung-Mok (Marine Research Institute, Samsung Heavy Industries Co., Ltd.) ;
  • Chun, Ho-Hwan (Department of Naval Architecture & Ocean Engineering, Pusan National University)
  • 이화준 (삼성중공업(주) 특수선기술지원팀) ;
  • 장학수 (삼성중공업(주) 특수선기술지원팀) ;
  • 홍춘범 (삼성중공업(주) 조선해양연구소) ;
  • 안성목 (삼성중공업(주) 조선해양연구소) ;
  • 전호환 (부산대학교 조선해양공학과)
  • Received : 2012.09.03
  • Accepted : 2012.11.21
  • Published : 2012.12.20
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Abstract

A hull-form for a 32,000G/T class Ro-Pax ferry has developed in accordance with a need of ferry operators to reduce fuel oil consumption(FOC) due to the drastic increase in oil prices recently and strengthening of environmental rules and regulations such as CO2 emission. A twin-skeg type is applied as the hull-form in lieu of an open-shaft type in order to improve propulsion performance. In order to achieve this object, flow control devices are installed to reduce a propeller induced vibration which is a main reason to obstruct the application of twin-skeg type passenger vessels owing to an uncomfortable vibration level. Numerical simulation by using an in-house code and a commercial code (Fluent) has performed to find out an optimum design of the flow control devices and to check an improvement in cavity volume. Model tests in Samsung Ship Model Basin are carried out to evaluate propulsion performance with the developed twin-skeg type hull and a reference hull of open-shaft type. In conclusion, it is shown that the twin-skeg type hull is better than the open-shaft in FOC by around 7% and in cavity volume by 20% as well.

Keywords

References

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