无网格法中SPH法和MLS法的对比  

Compared with SPH and MLS in the Meshless Method

作　　者：杨宇红[1] 秦伶俐[1] 周喆[1] 

机构地区：[1]中国农业大学理学院,北京100083

出　　处：《农机化研究》2004年第5期113-114,117,共3页Journal of Agricultural Mechanization Research

摘　　要：无网格法是近期发展起来的一种数值计算方法,其的形函数构造有多种方法。为此,着重介绍了较常用的两种方法:移动最小二乘法(MLS)和光滑粒子法(SPH),并对这两种不同的方法进行了阐述,对比了这两种插值函数的异同,最后又用数值算例对其计算精度进行了比较。A meshless method is a numerical method which was developed recent years. There are many different methods in constructing the shape function. This article focuses in two methods widely used, namely MLS(moving least-squares) method and SPH(smoothed particle hydrodynamics). The article lists the different methods and contrasts the difference between the two interpolate function. In the end numerical examples are used to compare the accuracy of the proposed methods. [

关 键 词：无网格法 SPH法 MLS法 数值计算 

分 类 号：O241[理学—计算数学]