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

The Society of Naval Architects of Korea (대한조선학회)
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Computation of the Bow Deck Design Pressure against the Green Water Impact

Green Water 충격에 대비한 선수갑판 설계압력의 산출

  • Kim, Yong Jig (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University) ;
  • Shin, Ki-Seok (DNV GL Korea Ltd.) ;
  • Lee, Seung-Chul (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University) ;
  • Ha, Youngrok (Department of Naval Architecture and Ocean Engineering, Koje College) ;
  • Hong, Sa Young (Korea Research Institute of Ships and Ocean Engineering)
  • 김용직 (부경대학교 조선해양시스템공학과) ;
  • 신기석 (디엔브이 지엘 코리아) ;
  • 이승철 (부경대학교 조선해양시스템공학과) ;
  • 하영록 (거제대학교 조선해양공학과) ;
  • 홍사영 (선박해양플랜트연구소)
  • Received : 2019.01.09
  • Accepted : 2019.02.18
  • Published : 2019.08.20
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Abstract

Green water impact may sometimes cause some structure damages on ship's bow deck. Prediction of proper design pressure against the green water impact is an essential task to prevent the possible damages on bow deck. This paper presents a computational method of the bow deck's design pressure against the green water impact. Large heave and pitch motions of ship are calculated by the time domain nonlinear strip method. Green water flow and pressure on bow deck are simulated by the predictor-corrector second kind upstream finite difference method. This green water simulation method is based on the shallow water wave equations expanded for moving bottom conditions. For various kind of ships such as container ship, VLCC, oil tanker and bulk carrier, the green water design pressures on bow deck are computed and discussed. Also, the obtained results of design pressure on bow deck are compared with those of the classification society rules and discussed.

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References

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