基于STAR-CCM+仿真软件的双体船水动力性能分析
Hydrodynamic Performance Analysis of Catamaran Based on STAR-CCM+Simulation Software
丁垤涛 1蔡树斌 2黄技1
作者信息
- 1. 广东海洋大学 船舶与海运学院,广东 湛江 524088
- 2. 广船国际有限公司,广东 广州 511462
- 折叠
摘要
以某双体船为研究对象,基于 STAR-CCM+仿真软件,按网格无关性验证和时间步长无关性验证的要求,对双船体船静水阻力进行数值方法验证,证明数值计算结果的准确性.对不同片体间距、不同片体形态和不同斜向航行角度等工况进行数值计算,分析双体船水动力性能.计算结果表明:在双体船直航时,在片体间距比为 0.2、弗劳德数为 0.4 的工况条件下,与同一航速的其他工况条件相比静水具有明显的骤升现象,且总阻力系数达最大值 14.56×10-3;在片体外旋转 2°时,与其他旋转角度相比阻力值最小.研究发现,无论是在直航还是斜向航行的情况下,双体船的总阻力系数均呈现先升后降的趋势,说明该船型在处于高速航行状态时具有一定的优越性.
Abstract
Taken a catamaran as the research object,based on STAR-CCM+simulation software,according to the requirements of grid independence verification and time step independence verification,the static water resistance of the catamaran is verified with the numerical method,and the accuracy of numerical calculation results is proved.The numerical calculation of operation conditions such as different demihull spacing,different demihull forms,and different oblique sailing angles is made,and the hydrodynamic performance of the catamaran is analyzed.The calculation results show that:when the catamaran is in the direct sailing,under the operation condition with demihull spacing ratio of 0.2 and Froude number of 0.4,the static water resistance is of an obvious sudden rise compared with other operation conditions with the same speed,and the total resistance coefficient reaches the maximum value of 14.56×10-3;when the demihull is rotated outside by 2°,the resistance value is minimal compared to other rotation angles.It is found that,no matter in case of direct sailing or oblique sailing,the total resistance coefficient of the catamaran presents a trend of first increasing and then decreasing,which shows that the catamaran is of certain superiority when it is in high-speed sailing.
关键词
双体船/水动力性能/STAR-CCM+仿真软件/片体间距/片体形态/斜向航行角度Key words
catamaran/hydrodynamic performance/STAR-CCM+simulation software/demihull spacing/demihull form/oblique sailing angle引用本文复制引用
基金项目
省级大学生创新创业训练计划(S202310566066)
广东海洋大学校级创新创业团队项目(CCTD201812)
出版年
2024
NETL
NSTL
万方数据