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以典型护卫舰简化模型SFS为研究对象,研究适用于复杂船型的网格划分方法.对比了结构、非结构和混合网格三种网格形式下的流场计算结果,研究表明:网格形式并不会显著影响计算结果,且混合网格在适用性方面优于结构化网格,网格数量控制方面优于非结构化网格.为验证混合网格精度,以CVN-73(乔治·华盛顿号)为验证对象划分混合网格进行数值计算,获得了与风洞试验具有较高符合度的仿真结果,证明混合网格针对复杂船型的CFD仿真计算更具优势,验证了混合网格的适用性.
Taking the typical frigate simplified model SFS as the research object and studying the meshing method suitable for complex ship types, the computational results of the flow field under three kinds of grids, including structural, unstructured and mixed meshes, are compared. The results show that the grid form The mixed meshes are superior to structured meshes in terms of applicability and the number of meshes is superior to unstructured meshes in controlling the number of meshes.In order to verify the accuracy of hybrid meshes, hybrid meshes CVN-73 (George Washington ) For the verification object is divided into mixed meshes for numerical calculation, and the simulation results with high compliance with wind tunnel test are obtained. It is proved that the hybrid mesh is more advantageous to the CFD simulation of complex ship, and the application of hybrid mesh is validated Sex.