Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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A study on the hydrodynamic forces acting on a GT 4,000 tonnage fishery training vessel in the proximity of semi-circle bank wall

반원 형상의 측벽 부근을 항행하는 4,000톤급 어업실습선에 미치는 유체력에 관한 연구

  • Chun-Ki LEE (Div. of Navigation Convergence Studies, Korea Maritime and Ocean University) ;
  • Kyung-Jin RYU (Training ship, Pukyong National University) ;
  • Yoo-Won LEE (Division of Marine Production System Management, Pukyong National University) ;
  • Su-Hyung KIM (Training ship, Pukyong National University)
  • 이춘기 (한국해양대학교 항해융합학부) ;
  • 류경진 (부경대학교 실습선) ;
  • 이유원 (부경대학교 해양생산시스템관리학부) ;
  • 김수형 (부경대학교 실습선)
  • Received : 2023.10.26
  • Accepted : 2023.11.24
  • Published : 2023.11.30
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Abstract

The aging fishery training vessels from the past have mostly been decommissioned, and many universities are introducing state-of-the-art large fishery training vessels. The purpose of these training vessels is to train marine professionals and above all, safety to prevent marine accidents should be of utmost priority as many students embark on the vessel. This study estimated the impact of the hydrodynamic interaction forces acting on the model vessel (fishery training vessel) from the bank when the vessel pass near the semi-circle bank wall in various conditions through the numerical calculation, especially concerning maneuvering motions of the vessel. For estimation, variables were mainly set as the size of the semi-circle shape, the lateral distance between the bank and the model vessel, and the depth near the bank. As a result, it was estimated that, in order for the model vessel to safely pass the semi-circle bank wall at a speed of 4 knots, the water depth to the vessel draft ratio should be 1.5 or more (approximately 8 m of water depth), and the lateral distance from the semi-circle bank wall should be 0.4 times the model vessel's length (Lpp) or more (a distance of 34 m or more). Under these conditions, it was expected that the model vessel would pass without significantly being affected by the bank wall.

Keywords

References

  1. Baric M, Mohovic R, Mohovic D and Pavic V. 2021. The simulation of sloped bank effect influence on container ship trajectory. Journal of Marine Science and Engineering 9, 1283. https://doi.org/10.3390/jmse9111283. 
  2. International Towing Tank Conference. 2003. Manoeuvring in shallow and confined water. Preoceedings 23rd ITTC 1, 201-209. 
  3. Kijima K. 1991. The interaction effects between two ships in the proximity of bank wall. Trans. of the West-Japan Society of Naval Architects, 81. 
  4. Kim SH and Lee CK. 2019. A study on the turning-motion of T/S SAEBADA in shallow water. J. Korean Soc. Fish. Ocean Technol 55, 273-283. https://doi.org/10.3796/KSFOT. 2019.55.3.273. 
  5. Lee CK and Kang IK. 2003. On the interaction effects between ships in confined water including the effect of wind and current. J Korean Soc Fish Ocean Technol 39, 112-119.  https://doi.org/10.3796/KSFT.2003.39.2.112
  6. Lee CK and Kang IK. 2004. A study on the hydrodynamic interaction forces between ship and bank wall in the proximity of bank. J Korean Soc Fish Ocean Technol 40, 73-77.  https://doi.org/10.3796/KSFT.2004.40.1.073
  7. Lee CK, Moon SB, Oh JS and Lee SM. 2015. Numerical analysis for hydrodynamic interaction effects between vessel and semi-circle bank wall. Int J Nav Archit Ocean Eng 7, 691-698. https://doi.org/10.1515/ijnaoe-2015-0048. 
  8. Lee CK, Lee YW, Ryu KJ and Kim SH. 2023. Estimation of maneuvering characteristic of training ship Baek-Kyung according to water depth. J Korean Soc Fish Ocean Technol 59, 263-270. https://doi.org/10.3796/KSFOT.2023.59.3.263. 
  9. Newman JN. 1965. The force and moment on a slender body of revolution moving near a wall (No. Report 2127). David Taylor Model Basin, 1-10. 
  10. Newman JN. 1969. Lateral motion of a slender body between two parallel walls. Journal of Fluid Mechanics 39, 97-115. https://doi.org/10.1017/S0022112069002060. 
  11. Newman JN. 1972. Paper 6. Some Theories for ship manoeuvring. Journal of Mechanical Engineering Science 14, 34-42. https://doi.org/10.1243/JMES_JOUR_1972_014_061_02. 
  12. Yeung RW and Tan WT. 1980. Hydrodynamic interactions of ships with fixed obstacles. Journal of ship research 24, 50-59. 
  13. Yasukawa H. 1991. Bank effect on ship maneuverability in a channel with varying width. Trans. of the West-Japan Society of Naval Architects, 81, 85-100. https://doi.org/10.14856/wjsna.81.0_85. 
  14. Yasukawa H. 2002a. Ship Maneuvering motions in the proximity of bank. Trans. of the West-Japan Society of Naval Architects 104, 41-52. 
  15. Yasukawa H. 2002b. Yasukawa, ship manoeuvring motions between two ships navigating in the proximity. Trans. of the West-Japan Society of Naval Architects 105, 43-54.