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Study on the deployment of emergency tugs for large liquefied natural gas vessels under restricted terminal waters
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Xingya ZHAO1, 2, Mengxia LI3, 4, 5, Haoran LYU1, 2, Zhiliang CHEN6, Junmin MOU1, 2
Navigation of China | 2025, 48(1) : 9 - 17
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Navigation of China | 2025, 48(1): 9-17
• Marine Traffic Safety •
Study on the deployment of emergency tugs for large liquefied natural gas vessels under restricted terminal waters
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Xingya ZHAO1, 2, Mengxia LI3, 4, 5, Haoran LYU1, 2, Zhiliang CHEN6, Junmin MOU1, 2
Affiliations
  • 1.School of Navigation, Wuhan University of Technology, Wuhan 430063, China
  • 2.Hubei Key Laboratory of Inland Shipping Technology, Wuhan University of Technology, Wuhan 430063, China
  • 3.State Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan 430063, China
  • 4.Intelligent Transportation System Research Center, Wuhan University of Technology, Wuhan 430063, China
  • 5.National Engineering Research Center for Water Transport Safety, Wuhan 430063, China
  • 6.Wenzhou Pilot Station, Wenzhou 325000, China
Published: 2025-03-25 doi: 10.3969/j.issn.1000-4653.2025.01.002
Outline
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In order to study the safe deployment of tugboats under the uncontrolled situation of large LNG (Liquefied Natural Gas) ships in the dock-constrained waters, and to ensure the safety of port terminal operations, the study adopts the CFD (Computational Fluid Dynamics) analysis method, based on the wind flow interference model, and calculates the hydrodynamic parameters and determines the emergency tugboat deployment strategy by simulating the drift process of the large LNG ship under different working conditions. Taking Wenzhou Xiaomendao as a case study object, the study focuses on analyzing the ship motion process of Qmax LNG ship under the working condition of sudden loss of control, and calculates the drift distance, which is used to guide the emergency deployment of tugboats. The results of the study show that the emergency deployment strategy of tugboat under different working conditions can be clarified by CFD analysis. This study provides scientific support for the safety of large LNG vessels in port transportation and provides an effective basis for emergency decision-making for port management to ensure the safe operation of ports and shipping industries.

large LNG ships  /  different operating conditions  /  ship out of control  /  tug deployment  /  terminal water constraints
Xingya ZHAO, Mengxia LI, Haoran LYU, Zhiliang CHEN, Junmin MOU. Study on the deployment of emergency tugs for large liquefied natural gas vessels under restricted terminal waters[J]. Navigation of China, 2025 , 48 (1) : 9 -17 . DOI: 10.3969/j.issn.1000-4653.2025.01.002
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Article Info
doi: 10.3969/j.issn.1000-4653.2025.01.002
  • Receive Date：2023-11-24
  • Online Date：2026-03-17
  • Published：2025-03-25
Article Data
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History
  • Received：2023-11-24
Funding
Affiliations
    1.School of Navigation, Wuhan University of Technology, Wuhan 430063, China
    2.Hubei Key Laboratory of Inland Shipping Technology, Wuhan University of Technology, Wuhan 430063, China
    3.State Key Laboratory of Maritime Technology and Safety, Wuhan University of Technology, Wuhan 430063, China
    4.Intelligent Transportation System Research Center, Wuhan University of Technology, Wuhan 430063, China
    5.National Engineering Research Center for Water Transport Safety, Wuhan 430063, China
    6.Wenzhou Pilot Station, Wenzhou 325000, China
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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