Solution of the Modified Bratu Problem in SAMRAI

Pernice, M ; Gunney, B T

Lawrence Livermore National Laboratory

关键词: Implementation;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;    Mathematics;    Newton Method;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;   

DOI  :  10.2172/15013877
RP-ID  :  UCRL-TR-202155
RP-ID  :  W-7405-ENG-48
RP-ID  :  15013877

美国|英语

来源: UNT Digital Library

【 摘 要 】

A model implementation of the solution of an unsteady nonlinear reaction-diffusion on a SAMR grid using SAMRAI has been developed. This model implementation illustrates the use of new capabilities for implicit timestepping and solution of large-scale systems of nonlinear equations using implementations of inexact Newton methods found in KINSOL and PETSc. This document provides a detailed description of the implementation.