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

The Society of Naval Architects of Korea (대한조선학회)
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A Study on the Resistance Performance of the Goose Neck Bulbous Bow by Numerical Simulation Method

수치시뮬레이션기법을 이용한 거위목 벌브의 저항성능에 관한 연구

  • Yu, Jin-Won (Dept. of Naval Architecture and Ocean Engineering, Graduate School, Inha University) ;
  • Lee, Young-Gill (Dept. of Naval Architecture and Ocean Engineering, Inha University) ;
  • Jeong, Kwang-Leol (Dept. of Naval Architecture and Ocean Engineering, Graduate School, Inha University)
  • 유진원 (인하대학교 대학원 조선해양공학과) ;
  • 이영길 (인하대학교 기계공학부 선박해양공학) ;
  • 정광열 (인하대학교 대학원 조선해양공학과)
  • Received : 2010.03.12
  • Accepted : 2010.09.28
  • Published : 2010.10.20
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Abstract

Bulbous bow is one of the important design factors on the design of fore-body hull form. Using the interference technique of ship waves, the bulbous bow can decrease the wave resistance of ship. Recently, the goose neck bulb is applied mainly for high speed vessels like passenger ships and ferries etc.. Also, the goose neck bulb is applied for relatively high speed merchant vessels like container ships and LNG carriers. However, existing research papers about the goose neck bulb are not enough as reference data for the design of bow hull form. In this study, numerical calculations are carried out to investigate the bow wave characteristics of a high speed ferry with a normal high nose bulb or a goose neck bulb. By comparing the pressure distributions on the hull surface and the wave systems near the bow, the features of wave resistance reduction are discussed. Also, Numerical calculations were carried out for a series of goose neck bulbs to figure out the optimum bulb size. The maximum reduction rate of pressure resistance for the fore-body is achievable up to 8% by adopting the goose neck bulb in the present calculation.

Keywords

References

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Cited by

  1. Added Resistance and Seakeeping Ability of a Medium-sized Passenger Ship with Gooseneck Bulb vol.52, pp.4, 2015, https://doi.org/10.3744/SNAK.2015.52.4.290