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Numerical Study on Towing Stability of LNG Bunkering Barge in Calm Water

LNG 벙커링 바지의 정수 중 예인안정성에 관한 수치연구

Oh, Seung-Hoon;Jung, Dong-Ho;Jung, Jae-Hwan;Hwang, Sung-Chul;Cho, Seok-Kyu;Sung, Hong-Gun
오승훈;정동호;정재환;황성철;조석규;성홍근

  • Received : 2019.04.05
  • Accepted : 2019.05.23
  • Published : 2019.06.30

Abstract

In this paper, the towing stability of the LNG bunker barge was estimated. Currently, LNG bunkering barge is being developed for the bunkering of LNG (Liquefied Natural Gas), an eco-friendly energy source. Since the LNG bunkering barge assumes the form of a towed ship connected to the tow line, the towing stability of the LNG bunker barge is crucial f not only for the safety of the LNG bunker barge but also the neighboring sailing vessels. In the initial stages, a numerical code for towing simulation was developed to estimate the towing stability of the LNG bunkering barge. The MMG (Maneuvering Mathematical modeling Group) model was applied to the equations of motion while the empirical formula was applied to the maneuvering coefficients for use in the initial design stage. To validate the developed numerical code, it was compared with published calculation and model test results. Towing simulations were done based on the changing skeg area and the towing position of the LNG bunkering barge using the developed numerical codes. As a result, the suitability of the designed stern skeg area was confirmed.

Keywords

Towing Stability of LNG Bunkering Barge;Towing simulation;MMG Model;Maneuvering Coefficients;Stern Skeg

Acknowledgement

Grant : 연안선박 맞춤형 LNG벙커링 시스템 개발

Supported by : 해양수산부