半潜平台湿拖作业时横摇水动力特性数值研究  

A Numerical Study of Hydrodynamic Characteristics of Semi-Submersible Platform During Wet Towing Operations

作　　者：王会峰[1] 黄福祥[1] 蒋扬 阴炳钢 田立锋[1] 李隶辉 WANG Huifeng;HUANG Fuxiang;JIANG Yang;YIN Binggang;TIAN Lifeng;LI Lihui(Offshore Oil Engineering Co.Ltd.,Tianjin 300450,China;College of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]海洋石油工程股份有限公司,天津300450 [2]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《海洋工程装备与技术》2022年第2期29-37,共9页Ocean Engineering Equipment and Technology

基　　金：陵水半潜式生产平台研究专项(编号:LSZX-2020-HN-02)。

摘　　要：针对半潜平台湿拖作业中的横摇问题进行数值研究,结合雷诺时间平均Navier-Stokes方程和流体体积函数法建立半潜平台强迫横摇数值模型,并通过模型实验验证了数值模型的准确性。通过静水和航速为5kn时的强迫横摇水动力矩的滞后回线研究了横摇频率和航速对水动力矩滞后效应的影响,计算了半潜平台横摇附加惯性矩和阻尼,分析了半潜平台横摇时不同位置涡的分布和航速对流场的影响。研究结果对半潜平台的设计和拖航运输具有指导意义。A numerical study of the roll motion of a semi-submersible platform in wet-tow operations was conducted.In addition,a numerical model of forced roll motion of a semi-submersible platform was established by combining the Reynolds-averaged Navier-Stokes equation and the volume of fluid method,and the accuracy of the numerical model was verified by a model experiment.The effect of roll motion frequency and towing velocity on the hysteresis effect of the hydrodynamic moment were studied based on the moment hysteresis loops of forced roll motion in calm water at a towing velocity of 5 kn.The added moment of inertia and roll damping were calculated.The distribution of vorticity at different positions and the influence of speed on flow field during roll motion of the platform were analyzed.The research results were of guiding significance for the design and towing operations of semi-submersible platforms.

关 键 词：强迫横摇运动 横摇水动力 滞后效应 横摇附加惯性矩 横摇阻尼 流场结构 

分 类 号：P75[天文地球—海洋科学]