无网格法数值结果的云图表征

Nephogram Characterization of Meshless Method's Numerical Results

无网格法基于离散点的特性导致其数值计算结果的全域可视化表征遇到困难,特别是当这些离散点随机分布时。Delaunay三角化可将空间散乱点联接生成非结构化网格。提出以背景Delaunay三角形三个顶点数值结果的平均值所对应的颜色填充该三角形区域的无网格法数值结果云图生成方法,并借助MATLAB予以实现。算例表明所提方法行之有效。

Meshless method is based on discrete points. Since there is no connecting information among points, it is difficult to realize visualization of the numerical results, especially in the case of random distribution of discrete points. Delaunay triangulation is a useful tool to form the triangular mesh from the discrete points. In this paper, on the basis of the corresponding color of the average of three vertexes＂ numerical values of each background Delaunay triangle, a filling method for Nephogram characterization of meshless method＇s numerical results is presented and is realized by means of MATLAB. The proposed approach is demonstrated feasible and efficient.