航行体近水面航行附加质量与阻尼的数值研究  

Numerical Study on Added Mass and Damping of Near-surface Sailing of Underwater Vehicle

作　　者：邱绪明 柯贵喜 路伟 江兴隆 QIU Xuming;KE Guixi;LU Wei;JIANG Xinglong(No.710 R&D Institute,CSSC,Yichang 443003,China;Qingjiang Innovation Center,Wuhan 430076,China)

机构地区：[1]中国船舶集团有限公司第七一〇研究所,湖北宜昌443003 [2]清江创新中心,湖北武汉430076

出　　处：《数字海洋与水下攻防》2022年第5期453-458,共6页Digital Ocean & Underwater Warfare

摘　　要：航行体近水面航行时会引起周围流场中流体的惯性运动,动能会随波浪扩散而耗散,航行体近水面运动时固有周期和幅值衰减率受水的影响可以用附加质量和阻尼系数描述。运用计算流体力学软件STAR-CCM+开展航行体近水面自由横摇与纵摇衰减运动的数值仿真,根据不同初始角度条件下仿真得到的自由衰减时历曲线,分别计算横摇与纵摇的附加质量与阻尼系数,并结合实际运动情况,对不同初始角度条件下附加质量与阻尼系数的变化成因分别进行分析。When navigating near surface,underwater vehicle will cause inertial motion of the fluid in the surrounding flow field,and the kinetic energy,meanwhile,will dissipate with the wave diffusion.The natural period and amplitude attenuation velocity of the vehicle during near-surface movement are affected by the water,and can be described by added mass and damping coefficient.In this paper,the computational fluid dynamics software STAR-CCM+is used to carry out the numerical simulation of free roll and pitch attenuation motions of the near-surface vehicle.According to the simulated free attenuation time history curves obtained under different initial motion amplitudes,the added mass and damping coefficient of roll and pitch can be calculated respectively.Combined with the actual motion,the change causes for the added mass and damping coefficient under different initial motion amplitudes are analyzed respectively.

关 键 词：水下航行体 横摇 纵摇 附加质量 阻尼系数 

分 类 号：U661.321[交通运输工程—船舶及航道工程]