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

The Society of Naval Architects of Korea (대한조선학회)
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Development of a Numerical Method for the Evaluation of Ship Resistance and Self-Propulsion Performances

선박의 저항 및 자항성능 해석을 위한 수치기법 개발

  • Kim, Jin (Maritime and Ocean Engineering Research Institute, KORDI) ;
  • Park, Il-Ryong (Department of Naval Architecture and Ocean Engineering, Dongeui University) ;
  • Kim, Kwang-Soo (Maritime and Ocean Engineering Research Institute, KORDI) ;
  • Van, Suak-Ho (Maritime and Ocean Engineering Research Institute, KORDI) ;
  • Kim, Yoo-Chul (Maritime and Ocean Engineering Research Institute, KORDI)
  • 김진 (한국해양연구원 해양시스템안전연구소) ;
  • 박일룡 (동의대학교 조선해양공학과) ;
  • 김광수 (한국해양연구원 해양시스템안전연구소) ;
  • 반석호 (한국해양연구원 해양시스템안전연구소) ;
  • 김유철 (한국해양연구원 해양시스템안전연구소)
  • Received : 2010.08.04
  • Accepted : 2011.02.28
  • Published : 2011.04.20
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Abstract

A RANS(Reynolds averaged Navier-Stokes) based numerical method is developed for the evaluation of ship resistance and self-propulsion performances. In the usability aspect of CFD for the hull form design, the field grid around practical hull forms is generated by solving a grid Poisson equation based on the hull surface grid generated from station offsets and centerline profile. A body force technique is introduced to model the effects of the propeller in which the propeller loads are obtained from potential flow analysis using an unsteady lifting surface method. The free surface is captured by using a two-phase level-set method and the realizable $k-{\varepsilon}$ model is used for turbulence closure. The hull attitude in vertical plane, i.e., trim and sinkage, is calculated by using a quasi-steady method and then considered in the computation by translating and rotating the grid system according to the values. For the validation of the proposed method, the numerical results of resistance tests for KCS, KLNG, and KVLCC1 and of self-propulsion test for KCS are compared with experimental data.

Keywords

References

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