基于计算流体动力学的最小阻力船型自动优化  

Automated optimization of the ship hull form with minimum resistance based on CFD

作　　者：邓贤辉[1] 方昭昭[2] 赵丙乾[3] 

机构地区：[1]海军驻上海江南造船(集团)有限责任公司军事代表室,上海201913 [2]中国舰船研究设计中心,湖北武汉430064 [3]中国船级社武汉规范研究所,湖北武汉430022

出　　处：《中国舰船研究》2015年第3期19-25,共7页Chinese Journal of Ship Research

基　　金：国家部委基金资助项目

摘　　要：基于计算流体动力学(CFD)理论,利用i SIGHT优化设计平台构建一种船型自动优化方法。该方法集成船型变换及自动生成技术、CFD技术及优化算法。优化过程中,编制船型参数化融合模块实现船型变换与SHIPFLOW软件输入数据间的自动连接;采用遗传算法与二次序列规划法相结合的组合优化方法实现从全局探索再到局部空间寻优的整个流程。以某双艉集装箱船为例,优化后船体兴波阻力明显下降,总阻力也得到显著的改善,获得了设计航速下总阻力最小的船艏与船艉线型组合,表明了该方法的可行性与有效性。研究显示,所提出的方法可以获得阻力性能优良的船体型线供设计者参考,具有较强的工程适用性,在基于CFD的船型自动优化方面具有广阔的应用前景。Based on CFD theory, a hull form optimization system is established in this paper with thei SIGHT multidisciplinary optimization platform,on which the hull transformation and automatic generationtechnology, CFD, and hybrid optimization algorithm are integrated. During the optimization process, thehull form transformation and generation program is specifically developed so that the hull form transforma-tion is automatically connected to SHIPFLOW. The Generic Algorithm-Sequential Quadratic Programmingcombined with the second order hybrid optimization method is then applied to bridge the global optimiza-tion to the search local optimum solution. For validation, the numerical optimization for a bulk ship withtwin-skeg is carried out. The results indicate that the wave-making resistance decreases significantly andthe total resistance increases with a more practical ship hull＇s fore body,which proves the feasibility andits broad application prospects in the field of hull form design and the automatic optimization of ship hull＇shydrodynamic performance using CFD technology.

关 键 词：计算流体动力学 阻力 船型优化 混合算法 SHIPFLOW 

分 类 号：U661.1[交通运输工程—船舶及航道工程]