摘要
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。
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.
作者
刘宁
杨博睿
隋智享
杨碧野
郑瑜娜
张桂勇
LIU Ning;YANG Borui;SUI Zhixiang;YANG Biye;ZHENG Yuna;ZHANG Guiyong(AVIC Aerodynamics Research Institute,Shenyang 110034,China;School of Naval Architecture,Dalian University of Technology,Dalian 116024,China;China Ship Development and Design Center,Shanghai 201108,China;Norwegian University of Science and Technology,Trondheim 7049,Norway;State Key Laboratory of Structural Analysis,Optimization and CAE Software for Industrial Equipment,Dalian University of Technology,Dalian 116024,China)
出处
《中国造船》
EI
CSCD
北大核心
2024年第2期15-24,共10页
Shipbuilding of China
基金
国家自然科学基金项目(52061135107)。
