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

The Society of Naval Architects of Korea (대한조선학회)
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CFD Simulation of the Self-propulsion of a damaged Car Ferry in Waves

손상된 카페리 선박의 파랑중 자항상태 CFD 해석

  • Kim, Je-In (Marine Hydrodynamic Performance Research Center, Dong-Eui University) ;
  • Park, Il-Ryong (Department of Naval Architecture and Ocean Engineering, Dong-Eui University) ;
  • Kim, Jin (Korea Research Institute of Ships & Ocean Engineering, Korea Institute of Ocean Science & Technology) ;
  • Kim, Kwang-Soo (Korea Research Institute of Ships & Ocean Engineering, Korea Institute of Ocean Science & Technology) ;
  • Kim, Yoo-Chul (Korea Research Institute of Ships & Ocean Engineering, Korea Institute of Ocean Science & Technology)
  • 김제인 (동의대학교 유체성능평가연구소) ;
  • 박일룡 (동의대학교 조선해양공학과) ;
  • 김진 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김광수 (한국해양과학기술원 부설 선박해양플랜트연구소) ;
  • 김유철 (한국해양과학기술원 부설 선박해양플랜트연구소)
  • Received : 2018.03.19
  • Accepted : 2018.10.16
  • Published : 2019.02.20
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Abstract

This paper provides the numerical results for the self-propulsion performance in waves of a car ferry vessel with damage in one of its twin-screw propulsion systems without flooding the engine room. The numerical simulations were carried out according to the Safe Return to Port (SRtP) regulation made by the Lloyd's register, where the regulation requires that damaged passenger ships should have an ability to return to port with a speed of 6 knots in a Beaufort 8 sea condition. For the validation of the present numerical analysis study, the resistance performance and the self-propulsion performance of the car ferry in intact and damaged conditions in calm water were calculated, which showed a satisfactory agreement with the model test results of Korea Research Institute of Ship and Ocean engineering (KRISO). Finally, the numerical simulation of self-propulsion performance in waves of the damaged car ferry ship was carried out for a normal sea state and for a Beaufort 8 sea state, respectively. The estimated average Brake Horse Power (BHP) for keeping the damaged car ferry ship advancing at a speed of 6 knots in a Beaufort 8 sea state reached about 47% of BHP at MCR condition or about 56% of BHP at NCR condition of the engine determined at the design state. In conclusion, it can be noted that the engine power of the damaged car ferry ship in single propulsion condition is sufficient to satisfy the SRtP requirement.

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References

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