为探讨船舶在碎冰区航行时冰阻力的影响因素,本文通过STAR-CCM+离散元软件,建立碎冰区海冰的离散元模型,数值模拟船舶不同航速以及不同海冰厚度、海冰直径和海冰密集度情况下冰阻力的变化规律。最后将离散元法结果和有广泛运用的有限元方法对比,得出离散元方法在船冰相互作用中具有可行性的结论,为船冰相互作用提供了新的数值模拟方法作为参考。
In order to explore the influencing factors of ice resistance when ships sail in ice breaking area, this paper establishes the discrete element model of sea ice in ice breaking area through STAR-CCM + discrete element software, and the law of ice resistance was numerically simulated under various thickness of sea ice, various speeds of ship, various density of crushed ice and various diameter of sea ice. Finally, by comparing the results of the discrete element method with the widely used finite element method, it is concluded that the discrete element method is feasible in ship ice interaction, which provides a new numerical simulation method for ship ice interaction as a reference.
2023,45(1): 8-13 收稿日期:2021-10-21
DOI:10.3404/j.issn.1672-7649.2023.01.002
分类号:U663.5
基金项目:国家自然科学基金资助项目(51979130);江苏省自然科学基金面上项目(BK20191460)
作者简介:张健(1977-),男,博士,教授,研究方向为船舶与海洋结构物抗冰载荷性能