关于DAWSON方法中网格划分的研究  

Investigation of grid generation in DAW SON method

作　　者：高斌[1] 缪国平 

机构地区：[1]上海交通大学舶舶与海洋工程学院,上海200030

出　　处：《海洋工程》2000年第1期20-28,共9页The Ocean Engineering

摘　　要：在 CFD中 ,网格的划分有时是一个很重要的问题。在势流理论的 DAWSON方法中 ,有一套生成网格的基本方法 ,但初值的选择是人为的 ,因此 ,如何选择一个合理的初值乃是一个关键的问题。有鉴于此 ,本文就 WIGL EY船型 ,基于正交设计原理 ,设计了数值试验方案 ,研究了各种不同的初值对波形图和源强分布图以及兴波阻力的影响 。How to generate a reasonable grid for CFD is an important problem. Human selection of the initial values in the grid generation is the usual practice of DAWSON method. Different kinds of grids are generated according to different choices of initial values by different users. In view of this, a series of numerical experiments are planned on the Wigley ship form. After the main initial values of DAWSON grid have been selected as the investigation object, a scheme is worked out by orthogonal design. Different kinds of grids are analysed through the wave profile and source strength profile, and the comparison of wave making resistance values with measured ones. After this investigation, we can generate grids for DAWSON method with satisfactory results.

关 键 词：DAWSON方法 网格划分 WIGLEY船型 正交设计 

分 类 号：U661[交通运输工程—船舶及航道工程]