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船舶与单块碎冰相互作用的水动力效应研究

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采用CFD-FEM耦合算法建立适用于船-冰碰撞的数值模型,模拟船舶与单块碎冰从接近到发生碰撞的过程,提取碎冰的运动状态及船-冰碰撞力.在碎冰与船体碰撞前,由于流场的作用碎冰相对于初始位置发生了漂移,与船速同向的漂移速度分量随碎冰尺寸增加而减小;漂移使船舶与碎冰的相对速度减小,降低了船-冰碰撞力,并影响碎冰碰撞时的姿态.数值仿真结果可用于极地运输船舶的设计.
Study on the Hydrodynamic Effect of Ship Interaction with Single Block of Ice
A numerical model coupling FVM-FEM for ship-ice collision was established to investigate the influence of hydrodynamic effect on the interaction between ships and broken ice floes.The interaction process of the ship and a single block of ice from approaching to colliding was simulated.The motion of the ice floe and the ship-ice collision force were extracted.The results indicated that the unsteady flowfield induced a drift when the ice was very close to ship before the collision.The drift velocity along the direction of the ship's movement decreased with smaller ice floe.The relative velocity of the ship and the ice decreased with the drift of the ice floe and the ship-ice collision force reduced,which was affected by the size of the ice floe.

ice loadship-ice collisionpolar shiphydrodynamic effectCFD-FEM methodfluid-structure couplingco-simulation

刘宁、杨博睿、隋智享、杨碧野、郑瑜娜、张桂勇

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航空工业空气动力研究院,沈阳 110034

大连理工大学船舶工程学院,大连 116024

中国舰船研究设计中心,上海 201108

挪威科技大学土木与环境工程系,特隆赫姆7049

大连理工大学工业装备结构分析优化与CAE软件全国重点实验室,大连 116024

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冰载荷 船-冰碰撞 极区船舶 水动力 CFD-FEM方法 双向流固耦合 协同仿真

国家自然科学基金

52061135107

2024

中国造船
中国造船工程学会

中国造船

CSTPCD北大核心
影响因子:0.81
ISSN:1000-4882
年,卷(期):2024.65(2)