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Experimental study of ship resistance in artificial ice floes
Cold Regions Science and Technology ( IF 4.1 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.coldregions.2020.103102 Z. Zong , B.Y. Yang , Z. Sun , G.Y. Zhang
Cold Regions Science and Technology ( IF 4.1 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.coldregions.2020.103102 Z. Zong , B.Y. Yang , Z. Sun , G.Y. Zhang
Abstract In this paper, a model-scale ship towing experiment is conducted to investigate the ship resistance in small ice floes. Instead of using refrigerated model ice, artificial ice floes made of Polypropylene (PP) is used in the tests based on the assumption that the dominant motion modes of small ice floes in water are rigid-body ones. The control parameters are further tailored to define the sizes and shapes of the artificial ice floes, whose specific compositions are determined based on the information from field observations. These ice floes are then randomly placed on the water surface in the Laboratory to approximate the realistic characteristics of ship resistance caused by small ice floes in practical conditions. The influences of Sea ice concentration, floes shapes and floes sizes on ship resistance vs velocity are investigated. Experimental results close to those obtained from other authors have been obtained, which indicates the feasibility of using PP-material artificial ice floes to measure ship resistance in waters covered with small ice floes subjected to low ice concentrations. Interesting phenomena observed in the experimental tests are also reported and analyzed.
中文翻译:
人工浮冰船舶阻力试验研究
摘要 本文通过模型尺度的船舶拖曳实验研究了小浮冰中的船舶阻力。试验中不使用冷藏模型冰,而是使用聚丙烯 (PP) 制成的人造浮冰,这是基于水中小型浮冰的主要运动模式是刚体运动模式的假设。进一步调整控制参数以定义人造浮冰的大小和形状,其具体成分是根据现场观察的信息确定的。然后将这些浮冰随机放置在实验室的水面上,以近似实际条件下由小浮冰引起的船舶阻力的现实特征。研究了海冰浓度、浮冰形状和浮冰尺寸对船舶阻力与速度的影响。已经获得了与其他作者获得的结果接近的实验结果,这表明使用 PP 材料人造浮冰来测量在低冰浓度下覆盖小浮冰的水域中船舶阻力的可行性。还报告和分析了在实验测试中观察到的有趣现象。
更新日期:2020-08-01
中文翻译:
人工浮冰船舶阻力试验研究
摘要 本文通过模型尺度的船舶拖曳实验研究了小浮冰中的船舶阻力。试验中不使用冷藏模型冰,而是使用聚丙烯 (PP) 制成的人造浮冰,这是基于水中小型浮冰的主要运动模式是刚体运动模式的假设。进一步调整控制参数以定义人造浮冰的大小和形状,其具体成分是根据现场观察的信息确定的。然后将这些浮冰随机放置在实验室的水面上,以近似实际条件下由小浮冰引起的船舶阻力的现实特征。研究了海冰浓度、浮冰形状和浮冰尺寸对船舶阻力与速度的影响。已经获得了与其他作者获得的结果接近的实验结果,这表明使用 PP 材料人造浮冰来测量在低冰浓度下覆盖小浮冰的水域中船舶阻力的可行性。还报告和分析了在实验测试中观察到的有趣现象。