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Journal of ship and ocean technology v.10 no.2, 2006년, pp.1 - 10   피인용횟수: 1

Numerical Computation for the Comparison of Stern Flows around Various Twin Skegs

Kim, Jin   (Maritime and Ocean Engineering Research Institute, KORDI  ); Park, Il-Ryong   (Maritime and Ocean Engineering Research Institute, KORDI  ); Van, Suak-Ho   (Maritime and Ocean Engineering Research Institute, KORDI  ); Choi, Young-Bok   (Daewoo Shipbuilding and Marine Engineering Co., Ltd.CC0058498  ); Park, No-Joon   (Hanjin Heavy Industries and Construction Co., Ltd.CC0031853  );
  • 초록

    Numerical analysis of viscous flow around twin-skeg hull forms was conducted according to the variations of distance between skegs and vertical skeg inclinations by using a hydrodynamic analysis system, WAVIS. Six twin-skeg hull forms were derived by combining three distances between skegs (16m, 20m, 24m) and four vertical skeg angles ( $0^{\circ},\;10^{\circ},\;15^{\circ},\;20^{\circ}$ ). It is found that the better resistance performance can be obtained with larger vertical skeg angle and smaller skeg distance for the present test cases. It also can be seen that the same trend is true for the nominal wake distributions in the propeller plane. Those tendencies were confirmed by the experimental results of MOERI. It is shown that numerical analysis can be a useful and practical tool for the evaluation and improvement of hydrodynamic performances for the complex stern hull forms with twin skegs.


  • 주제어

    twin-skeg ship .   hydrodynamic performance .   RANS method .   turbulent flow.  

  • 참고문헌 (7)

    1. Lee, C. J., Y. Y. Lee, S. H. Van, J. R. Park, Y. S. Hwang, J. S. Park, S. P. Kim and N. J. Park. 2002. Development of Twin-skeg Hull Forms for Mega Containership and Powering Performances Evaluation. Proceedings of the Annual Autumn Meeting, SNAK, 157-161 
    2. Shih, T. -H., W. W. Liou, A. Shabir and J. Zhu. 1995. A New k-$\varepsilon$ Eddy Viscosity Model for High Reynolds Number Turbulent Flows-Model Development and Validation. Computers & Fluids, 2,3,227-238 
    3. Van, S. H. and I. R. Park. 2003. Comparison of Hydrodynamic Characteristics of Twinskeg ships corresponding to the Hull Variation. Proceedings of the Annual Spring Meeting, SNAK, 324-329 
    4. Lee, Y. Y., C. J. Lee, S.H. Van, J. S. Park, Y. S. Kim and N. J. Park. 2003. Investigation of Powering Performance with Parametric Variation of Distance and Vertical Angle of Twin-skegs. Proceedings of the Annual Autumn Meeting, SNAK, 229-233 
    5. Kim, W. J., D. H. Kim and S. H. Van. 2002. Computational study on turbulent flows around modem tanker hull forms. International Journal for Numerical Methods in Fluids, 38, 4, 377-406 
    6. Lee, Y. Y., C. J. Lee, S. H. Van, Y. S. Hwang, J. S. Park, S. P. Kim and N. J. Park. 2003. A Development of Basic Hull Forms and a Survey on the Performance for Twin-skeg Mega Containership. Proceedings of the Annual Spring Meeting, SNAK, 24-28 
    7. Van, S. H., I. R. Park, J. Kim and C. J. Lee. 2003. Hydrodynamic Performance Analysis for the Twin-skeg Ship with the Variation of Stern Hull Shape. Proceedings of the Annual Autumn Meeting, SNAK, 240-244 
  • 이 논문을 인용한 문헌 (1)

    1. Kim, Hee-Taek ; Van, Suak-Ho ; Kim, Hyoung-Tae 2007. "Numerical Analysis of Flow Characteristics of a Twin-skeg Container Ship with Variation of Stern Hull Shape" 大韓造船學會 論文集 = Journal of the Society of Naval Architects of Korea, 44(6): 551~563     

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