A Two-Level Aggregation-Based Newton-Krylov-Schwartz Method for Hydrology

Abstract

Newton-Krylov-Schwarz methods solve nonlinear equations by using Newton's method with a Schwarz domain decomposition preconditioned Krylov method to approximate the Newton step. In this paper we discuss the design and implementation of Newton-Krylov-Schwarz solvers in the context of the implicit temporal integration on an unstructured three-dimensional mesh of the Navier-Stokes evaluations for modeling flow in a river bend.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1999
Accession Number
ADA445744

Entities

People

  • A. K. Stagg
  • Carl Timothy Kelley
  • E. W. Jenkins
  • J. H. Schmidt
  • J. P. Hallberg
  • M. D. Tocci
  • R. C. Berger
  • Stacy E. Howington

Organizations

  • North Carolina State University

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Availability
  • Classification
  • Computations
  • Contracts
  • Decomposition
  • Equations
  • Hydrology
  • Information Operations
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  • Mathematics
  • Military Research
  • Monitoring
  • North Carolina
  • Security
  • Three Dimensional

Fields of Study

  • Mathematics

Readers

  • Computational Fluid Dynamics (CFD)
  • Linear Algebra