微分坐标变换与曲线网格生成方法研究  

Differential Coordinate Transformation and Technique of Curvilinear Grid Generation

作　　者：孙广才[1] 

机构地区：[1]渭南师范学院应用数学研究所,陕西渭南714000

出　　处：《渭南师范学院学报》2011年第12期20-23,共4页Journal of Weinan Normal University

基　　金：陕西省军民融合研究基金项目(11JMR08);渭南师范学院研究生专项项目(11YKZ004)

摘　　要：通过微分坐标变换的讨论,对边界拟合坐标的网格生成问题进行探讨,给出了一组生成正交曲线网格的控制函数.算例表明该控制函数能够对复杂边界的区域生成较理想的边界处正交曲线网格,内部网格分布能够适应物理量场的变化情况,是处理复杂边界区域流场数值模拟的一种有效工具.The paper discusses the differential coordinate transform method. A set control function for the generation of orthogohal curvilinear grid has been proposed. Some curvilinear grid generation examples show that satisfactory grids can be generated for simple-connected regions and connected-regions with complex boundary by using the proposed control function. The curvilinear grid at boundaries is orthogonal and the interior grids can be adaptive to the variation of physical parameters of fluid.

关 键 词：微分变换 曲线网格 控制函数 

分 类 号：O241.82[理学—计算数学]