摘要
计算液体动力学(CFD ) 在预言一艘轮船的流动行为起一个主要作用。与快计算机和柔韧的 CFD 软件的开发， CFD 在轮船工业为设计者和工程师成为了一个重要工具。在这份报纸，一艘轮船的壳形式作为一个优化工具作为一个计算工具和一个基因算法用 CFD 为全部的抵抗被优化。CFD 基于优化由基于设计参数包含几何学的自动产生的主要的步组成，网孔的自动产生，液体的自动分析计算要求的目的 / 费用的流动功能，并且最后为优化评估费用的一个优化工具。在这篇论文，一个基因算法程序的集成，在 MATLAB 写，与几何学和协调软件带风险的策略和 CFD 分析软件被执行流畅。添加剂的不同几何学球状的鞠躬基于设计参数在原来的壳被合并。这些设计变量被优化完成全部的抵抗的最小的费用功能。有 CFD 工具的一个基因算法的集成证明为壳形式优化有效。
Computational fluid dynamics （CFD） plays a major role in predicting the flow behavior of a ship. With the development of fast computers and robust CFD software, CFD has become an important tool for designers and engineers in the ship industry. In this paper, the hull form of a ship was optimized for total resistance using CFD as a calculation tool and a genetic algorithm as an optimization tool. CFD based optimization consists of major steps involving automatic generation of geometry based on design parameters, automatic generation of mesh, automatic analysis of fluid flow to calculate the required objective/cost function, and finally an optimization tool to evaluate the cost for optimization. In this paper, integration of a genetic algorithm program, written in MATLAB, was carried out with the geometry and meshing software GAMBIT and CFD analysis software FLUENT. Different geometries of additive bulbous bow were incorporated in the original hull based on design parameters. These design variables were optimized to achieve a minimum cost function of ＂total resistance＂. Integration of a genetic algorithm with CFD tools proves to be effective for hull form ootimization.
