期刊
SIAM JOURNAL ON SCIENTIFIC COMPUTING
卷 23, 期 2, 页码 430-441出版社
SIAM PUBLICATIONS
DOI: 10.1137/S1064827500372274
关键词
domain decomposition; Newton-Krylov-Schwarz methods; Richards' equation; nonlinear equations; aggregation
We consider theoretical and computational issues associated with an aggregation-based domain decomposition preconditioner applied to a Bi-CGSTAB iterative solver used to solve both Laplace's equation and an important nonlinear model from hydrology used to simulate unsaturated flow, Richards equation. Theoretical results for Laplace's equation provide estimates of the condition number and the rate of convergence for a two-level Schwarz domain decomposition preconditioner. Computational results for Laplace's equation and Richards' equation show excellent scalability, although no theory is yet available to support the results for the difficult nonlinear problem.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据