Accession Number:

ADA453075

Title:

An Aggregation-Based Domain Decomposition Preconditioner for Groundwater Flow

Descriptive Note:

Technical rept.

Corporate Author:

NORTH CAROLINA STATE UNIV AT RALEIGH CENTER FOR RESEARCH IN SCIENTIFIC COMPUTATION

Report Date:

2000-05-15

Pagination or Media Count:

14.0

Abstract:

In this paper we give a convergence analysis of a two-level additive Schwarz method in which the coarse mesh basis is constructed with aggregation, a method common in algebraic multigrid. This coarse mesh does not need geometric information about the subdomains and can readily be used on unstructured spatial meshes. We illustrate the performance with several computational examples.

Subject Categories:

  • Numerical Mathematics
  • Fluid Mechanics
  • Geology, Geochemistry and Mineralogy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE