摘要
船舶大幅度横摇的准确预报一直是船舶工程界关注的热点研究方向之一。基于CFD软件Fluent对船舶横摇问题进行了数值模拟研究,建立了船体自由横摇运动的有限体积模型。通过对一系列船体于静水中作不同初始横摇角的自由横摇运动进行数值模拟,分析得出船体横摇非线性过程中横摇角幅值存在一定的统计规律,并提出基于此统计规律对船体的大幅横摇运动进行数值预报的方法。
Accurate prediction of large roll motion has been a focus research issue of the ship engineering. A numerical simulation study on the ship roll was carried out through the CFD software Fluent. Two-dimensional finite volume models of roll decay motion were established. Based on the models, a numerical simulation of roll decay motion of a series of hull from different initial rolling angles in still water were carried out. The statistic characteristics of ship rolling amplitude were obtained, and a numerical prediction of large roll was proposed.
出处
《舰船科学技术》
北大核心
2012年第5期18-22,共5页
Ship Science and Technology
基金
国家自然科学基金资助项目(10902039)
关键词
横摇运动
统计特征
数值预报
CFD分析
roll motion
statistic characteristics
numerical prediction
CFD analysis
