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Influence of draft on the brash ice resistance of transport ships
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Hai-su SUN1, 2, Xuan NI2, Ming-cai XU3, Yu-xin ZHANG2, Zhuo ZHANG2, Bao-yu NI1
Journal of Ship Mechanics | 2025, 29(2) : 189 - 199
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Journal of Ship Mechanics | 2025, 29(2): 189-199
• Hydrodynamics •
Influence of draft on the brash ice resistance of transport ships
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Hai-su SUN1, 2, Xuan NI2, Ming-cai XU3, Yu-xin ZHANG2, Zhuo ZHANG2, Bao-yu NI1
Affiliations
  • 1.Harbin Engineering University, Harbin 150001, China
  • 2.Shanghai Merchant Ship Design and Research Institute, Shanghai 201203, China
  • 3.China Ship Research and Design Center, Shanghai 201108, China
Published: 2025-02-20 doi: 10.3969/j.issn.1007-7294.2025.02.003
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Based on the STAR-CCM+ software, CFD-DEM method was used to simulate the process of a type of an actual built transport ship sailing in a brash ice channel. The influence of different drafts on the resistance performance of the ship was studied. The interaction between the ship and water was obtained using CFD method. A numerical brash ice particle model was established using DEM method, the ship-ice collision phenomena and the brash ice resistance were studied. The results show that the distribution pattern of brash ice particles obtained based on the above method agrees well with that of the test conducted in Hamburg Ship Model Basin (HSVA). The total resistance of the numerical prediction varies little from the model test results. Also, the numerical method performs much better than the FSICR empirical formula's prediction, which verifies the reliability of the present method. The ice resistance of the whole ship does not show a monotonically decreasing trend with the decrease of draft, but increases significantly when a specific draft is reached. At a small draft, the change in trim has a little effect on the ice resistance of the whole ship, but has a large effect on the proportion of ice resistances of the fore, middle, aft and bottom parts of the hull.

brash ice  /  transport ship  /  resistance performance  /  numerical simulation  /  ice test
Hai-su SUN, Xuan NI, Ming-cai XU, Yu-xin ZHANG, Zhuo ZHANG, Bao-yu NI. Influence of draft on the brash ice resistance of transport ships[J]. Journal of Ship Mechanics, 2025 , 29 (2) : 189 -199 . DOI: 10.3969/j.issn.1007-7294.2025.02.003
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Year 2025 volume 29 Issue 2
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Article Info
doi: 10.3969/j.issn.1007-7294.2025.02.003
  • Receive Date：2024-08-24
  • Online Date：2026-03-24
  • Published：2025-02-20
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  • Received：2024-08-24
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Affiliations
    1.Harbin Engineering University, Harbin 150001, China
    2.Shanghai Merchant Ship Design and Research Institute, Shanghai 201203, China
    3.China Ship Research and Design Center, Shanghai 201108, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
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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