基于重叠网格的潜艇旋臂试验数值模拟  

Numerical Simulations of Submarine Rotating Arms Based on Overset Mesh

作　　者：张大朋 严谨 赵博文[2] 朱克强[3] ZHANG Da-peng;YAN Jin;ZHAO Bo-wen;ZHU Ke-qiang(College of Ocean Engineering, Guangdong Ocean University, Zhanjiang 524088, China;Ocean College, Zhejiang University, Zhoushan 316021, China;Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, China)

机构地区：[1]广东海洋大学海洋工程学院,湛江524088 [2]浙江大学海洋学院,舟山316021 [3]宁波大学海运学院,宁波315211

出　　处：《科学技术与工程》2022年第1期393-399,共7页Science Technology and Engineering

基　　金：广东海洋大学科研启动经费资助项目(060302072101);广东省促进经济高质量发展军民融合发展专项(粤融函办〔2020〕161);广东省促进经济高质量发展专项资金(海洋经济发展)(GDNRC〔2021〕56)。

摘　　要：潜艇水动力系数和流场特性对其操纵性的研究具有重要意义。为研究潜艇的定常回转运动,应用重叠网格法,对全附体潜艇回转运动的流场进行了数值模拟,并结合计算结果对潜艇回转的涡结构、艇体周围压力分布、速度场等流场结构进行了水动力分析。结果表明:重叠网格法对角速度系数的预报精度基本可以满足工程需求,但远不如对速度系数的预报精度;重叠网格法可以良好地捕捉到流场的特征和细节;潜艇因回转运动产生剧烈的流动分离,左右两舷的流动不再对称。研究对应用重叠网格法模拟旋臂试验有一定的参考价值。The hydrodynamic coefficients and flow field characteristics are significant for the hydrodynamic performance of submarine.In order to study the steady rotating motion of submarine,the overlapping grid method was used to simulate the rotating flow field of fully attached submarine.Combined with the calculation results,the hydrodynamic analysis of the rotating vortex structure,pressure distribution around the submarine and velocity field was carried out.The results show that the prediction accuracy of the angular velocity coefficient of the overset mesh can basically meet the engineering requirements,but it is far inferior to the prediction accuracy of the velocity coefficient.The overset mesh can well capture the characteristics and details of the flow field.It has a certain reference value for the simulation of rotating arm test by overset mesh.

关 键 词：潜艇 回转 重叠网格 水动力分析 

分 类 号：U671.99[交通运输工程—船舶及航道工程]