吉林大学生物与农业工程学院,长春,130022
网络首发:2009-03-10,
纸质出版:2009
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冯占荣 1, 于建群 1, 付宏 2, 等. 一种二维贴体网格改进算法的研究[J]. 西安交通大学学报, 2009,43(3):60-64.
Improved Algorithm for Generating Two-Dimensional Body-Fitted Grid[J]. 2009, 43(3): 60-64.
为了改善流体数值计算的准确性和软件应用的方便性
对基于边界CAD模型的网格生成算法进行了探究.在对TM法和魏文礼法进行改进的基础上
结合邻边界节点滑动法
提出了一种改进的TM-魏法.在对AutoCAD软件进行二次开发的基础上
编制了基于边界CAD模型的网格生成软件
采用该软件对TM法、魏文礼法和改进的TM-魏法进行了比较
结果表明
改进的TM-魏法生成的网格在边界处及内部正交性上优于TM法或魏文礼法
对流场的适应性较好
且人机交互操作简单、方便.
To evaluate flow fields more accurately and use the software more easily
the algorithm for generating two-dimensional grid based on the CAD model of boundaries is investigated. Analyzing the TM method and the WEI Wenli method
and considering the adjacent boundary nodes sliding method as a reference
an improved method(called improved TM-WEI method)for generating body-fitted grid is proposed. Following the developed AutoCAD software
the two-dimensional body-fitted grids can be generated. A comparison of the improved TM-WEI method with TM method and WEI Wenli method shows that the grids generated by the improved TM-WEI method at the boundaries and the interior have better orthogonalitythan TM method and WEI Wenli method with higher accuracy of solution and better convenience of generation.
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