摘要
随着船舶大型化的发展,反映船舶机动性的回转性能变得越来越重要。在船舶设计中,往往通过加装呆木提高船舶的航向稳定性,但是却对回转性能有着不利影响。在商业软件STAR-CCM+上采用体积力法、重叠网格技术及六自由度运动模型,开展了某集装箱船的回转运动数值模拟。加装呆木前后船模回转过程中失速和横倾角的变化进行对比,分析了回转性能变化的原因。结果显示,数值预报的各项回转运动的特征值与试验的误差在10%以内,证明本文采用的计算方法有效,可以为呆木的前期设计提供可靠参考。
With the development of large-scale ships,the turning performance reflecting the maneuverability of ships becomes more and more important.In the process of ship design,the course keeping stability of the ship is often improved by adding deadwood,but it has an adverse effect on the turning performance.The numerical simulation of the turning motion of a container ship is carried out by using the body force method,the overlapping grid technology and the 6-DOF motion model on the STAR-CCM+.The changes of speed loss and yaw port rate during the motion of the ship model after installing the deadwood are compared,and the reasons for the change of the turning performance are analyzed.The results show that the errors between the characteristic values of the turning motions predicted by the numerical calculation and the values of experiments are within 15%,which proves that the calculation method adopted in this paper is effective and can provide a reliable reference for the early design of a deadwood.
作者
郝昊
陈伟民
杜云龙
张青山
HAO Hao;CHEN Weimin;DU Yunlong;ZHANG Qingshan(Shanghai Ship and Shipping Research Institute,Shanghai 200120,China)
出处
《舰船科学技术》
北大核心
2025年第1期43-48,共6页
Ship Science and Technology
关键词
船舶
回转运动
数值模拟
呆木
ship
turning motion
numerical simulation
deadwood
