摘要
区域分解方法在处理复杂求解区域问题上比一般常用方法要优越。本文在Schwarz交替法的基础上，给出了不带松弛因子和带松弛因子的重叠型区域分解算法。数值实例说明：利用区域分解算法，可以得到较理想的计算结果，算法的收敛速度与离散网格无关，而且相似问题具有相近的最佳松弛因子。
Domain decomposition method (DDM) is superior to the ordinary methods in solving complex domain problems. In this paper, on the basis of Schwarz alternating method, the algorithms of overlapping DDM both without and with relaxation factor are given. The numerical examples show that right results can be obtained by using DDM, the convergence rate of DDM is inderpendent of the mesh size, and the optimal relaxation factors are similar in the similar problems.
出处
《电波科学学报》
EI
CSCD
1998年第4期382-387,共6页
Chinese Journal of Radio Science
基金
国家863计划!863-820-6
关键词
区域分解方法
选代
松弛
有限元
Domain decomposition method iteration Relaxation Finite element method
