水下航行体近场UUV斜航状态水动力性能研究  

Research on Hydrodynamic Performance of UUV Operating Near the Underwater Vehicle under the Oblique Towing Condition

作　　者：任梦晨 姚惠之[1,2] 赵桥生 李德军[1] 李永成 REN Mengchen;YAO Huizhi;ZHAO Qiaosheng;LI Dejun;LI Yongcheng(China Ship Scientific Research Center,Wuxi 214082,China;State Key Laboratory of Hydrodynamics,Wuxi 214082,China)

机构地区：[1]中国船舶科学研究中心,无锡214082 [2]水动力学全国重点实验室,无锡214082

出　　处：《中国造船》2024年第4期273-280,共8页Shipbuilding of China

摘　　要：UUV在水下航行体近场运动时,其在斜航状态下的水动力特性对UUV操纵性能的研究有重要意义。论文以全附体SUBOFF和UUV模型为研究对象,基于STAR-CCM+软件中的RANS求解器,开展了UUV在SUBOFF模型近场区域内水平斜航状态下的水动力数值预报研究。分析了不同位置处UUV侧向力和偏航力矩随漂角的变化规律,采用最小二乘法进行回归分析得到了不同位置处UUV的各项水动力系数,利用interpolant拟合函数进行插值进而得到了计算区域内UUV各项水动力系数的分布云图。研究结果表明,随着UUV靠近水下航行体首部和壁面,其水动力系数的变化主要来自于非线性项。The hydrodynamic characteristics of UUV in the near field of underwater vehicles under oblique condition are of great significance for the study of UUV maneuvering performance.The paper focused on the fully attached SUBOFF and UUV models,and based on the RANS solver in STAR-CCM+,conducted a numerical prediction study of the hydrodynamic characteristics of UUV in the near field region of the SUBOFF model under horizontal oblique condition.The variation of lateral force and yaw moment of UUV at different positions with drift angle was analyzed.Then the least squares method was used for regression analysis to obtain various hydrodynamic coefficients of UUV at different positions and interpolant fitting function was used for interpolation to obtain the distribution cloud map of various hydrodynamic coefficients of UUV in the calculation area.The research results indicate that as the UUV approaches the bow and wall of the underwater vehicle,the change in its hydrodynamic coefficient mainly comes from the nonlinear term.

关 键 词：水下航行体 UUV CFD方法 斜航 水动力特性 

分 类 号：U674.941[交通运输工程—船舶及航道工程]