基于CFD船体贴体网格剖分

Body-Fitted Grid Generation for Ship Hull in Ship CFD Numerical Computation

本文对船体贴体网格进行了剖分,所得网格可用于船舶CFD数值计算.列出了网格质量的判定标准,给出了判定参数的计算方法和意义.进而用ICEM CFD剖分了船体网格,并给出了结构网格、非结构网格、混合网格的剖分流程和剖分时的注意事项.S60船体结构较为简单,采用结构网格;集装箱船体结构较为复杂,采用非结构网格.结果表明,生成网格质量较高.

The paper does research on body-fitted gird generation for ship hull,and the generated grid is used in ship CFD numerical computation. Firstly,the criteria on grid quality test are provided,and the computing method of the criterion parameter and meaning of the parameter are given. Secondly,ICEM CFD is used to generate the bodyfitted grid. The process and point of attention of generating grid,including the structured,unstructured,and hybrid grid,are presented. The structure of the S60 ship hull is simple,so its fitted grid is structured grid. That of the container ship hull is complex,so its fitted grid is generated as unstructured grid. Results show that the quality of the generated gird is high.