Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Bank Effect of a Ship Operating in a Shallow Water and Channel

천수 및 수로 운항 시 선박의 측벽효과

  • Park, Dong-Woo (Department of Naval Architecture & Ocean Engineering, Tongmyong University) ;
  • Choi, Hee-Jong (Department of Naval Architecture & Ocean Engineering, Chonnam National University) ;
  • Pai, Kwang-Jun (Samsung Ship Model Basin(SSMB), Samsung Heavy Industries)
  • 박동우 (동명대학교 조선해양공학과) ;
  • 최희종 (전남대학교 조선해양공학과) ;
  • 백광준 (삼성중공업(주) 조선해양연구소)
  • Received : 2013.11.07
  • Accepted : 2014.02.24
  • Published : 2014.02.28
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Abstract

When a ship operates in a shallow water and channel, the hull sinkage and asymmetrical force generated around the ship by the influence of sea bottom and bank walls are caused collision with sea bottom, other ships or the bank itself. Especially, the shipping company and pilots navigating the area of Europe and North America with many channels are deal with it as a important matter to prevent collision. In this paper, hydrodynamic force generated between the ship and bank using the numerical analysis for the safe navigation of ship, that is, sway force and yaw moment should be presumed qualitatively. It makes a program for fluid analysis of the shallow water and bank effect. Analyses are carried out for three kind of parameter, that is, ship's speed, water depth and ship-bank distance for crude oil carriers. The numerical analysis results are compared with results of the experiments and the previous published papers.

선박이 천수 및 수로를 운항하는 경우, 바닥과 측벽의 영향으로 인해 선체침하 및 비대칭적인 힘이 선체 주위에 발생하여 바닥이나 다른 선박 혹은 수로의 벽에 충돌하는 현상이 발생한다. 특히, 수로가 많은 유럽이나 북미를 운항하는 해운회사와 항해사들은 선박의 충돌을 방지하기 위해서 중요한 문제로 다루고 있다. 본 연구에서는 선박의 안전한 항해를 위해 수치해석을 이용하여 선박과 수로의 벽 사이에 발생하는 유체역학적 힘인 횡력(Sway Force)과 선회 모멘트(Yaw Moment)를 정성적으로 추정하고자 하였다. 천수와 측벽효과(Bank Effect)를 해석할 수 있는 프로그램을 개발하여 크기가 다른 원유 운반선 2척에 대하여 선속, 수심 그리고 선박과 측벽 사이 거리의 변화에 따른 다양한 해석을 수행하였다. 계산된 결과는 시험 결과 및 기 발표된 수치해석 결과와 비교하였다.

Keywords

References

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