集装箱船外飘砰击载荷的CFD数值分析  

CFD Analysis on Flare Slamming Load of Container Ships

作　　者：王澳 王建华[1] 万德成[1] 刘义 郭浩 WANG Ao;WANG Jianhua;WAN Decheng;LIU Yi;GUO Hao(Computational Marine Hydrodynamics Lab(CMHL),School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Marine Design and Research Institute of China,Shanghai 200011,China)

机构地区：[1]上海交通大学船海计算水动力学研究中心(CMHL)船舶海洋与建筑工程学院,上海200240 [2]中国船舶及海洋工程设计研究院,上海200011

出　　处：《中国造船》2024年第1期16-29,共14页Shipbuilding of China

基　　金：国家自然科学基金重点项目(52131102)。

摘　　要：基于黏流CFD方法研究迎浪工况下波长和波高对KCS船运动和外飘砰击的影响,分析砰击压力的时空分布及其与船舶垂向运动的关系。基于开源造波工具waves2Foam建立三维数值水池,采用naoe-FOAM-SJTU求解器中的重叠网格技术求解船舶在波浪中的运动。计算结果表明,船舶运动幅值随波长和波高的增大而增大,波长船长比为1时外飘砰击压力最大,外飘砰击压力随波高增大呈线性增大规律。集装箱船应尽量避免在波长接近船长的海况下航行。这项研究可为波浪中的船舶砰击载荷预报提供参考。Based on the CFD method,the effects of wavelength and wave height on the motion and flare slamming of KCS ships under wave conditions are studied.The spatiotemporal distribution of slamming pressure and its relationship with the vertical motion are analyzed.Based on the open-source wave-making tool waves2Foam,a three-dimensional numerical water tank is established,and the overset grid technology of the naoe FOAM-SJTU solver is used to solve the motion of ships in waves.The results indicate that the amplitude of ship motion increases with the increase of the wavelength and wave height,and the flare slamming pressure is the highest atλ/L PP=1.The flare slamming pressure increases linearly with the increase of the wave height.Container ships should avoid sailing in sea conditions with a wavelength close to the length of the ship.This study can provide a reference for predicting ship-slamming loads in waves.

关 键 词：集装箱船 CFD方法 重叠网格方法 外飘砰击 载荷时空特性 

分 类 号：U661.1[交通运输工程—船舶及航道工程]