摘要
§1.引言多重网格技术概括地说是指:不是用一套网格而是用多套网格去解偏微分方程。从一个粗剖分开始逐步加密,充分利用中间信息以达到保证精度、提高效率、节省存贮、结果可靠和方便使用等目的。它包括以下几个方面: (1)网格自动加密; (2)自动形成离散方程组; (3)用多重网格方法进行代数求解,包括外推插值提供好的迭代初值;
This paper is devoted to the discussion of data structure suited for multigrid techniques in the finite element software for elliptic boundary value problems. Three topics are considered in detail: The description of geometry and physical complexity for problems; combinations among nodes from the same grid level and among nodes from different grid levels; and combinations between grids and data defined on it.
出处
《数值计算与计算机应用》
CSCD
北大核心
1990年第2期70-79,共10页
Journal on Numerical Methods and Computer Applications
