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基于Householder方法的子域精细积分

Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2009-01-01

Journal: 计算力学学报

Included Journals: CSCD、ISTIC、PKU、EI、Scopus

Volume: 26

Issue: 4

Page Number: 535-538

ISSN: 1007-4708

Key Words: Householder变换; 预估-校正; 子域精细积分; 瞬态热传导

Abstract: 有限元法生成的矩阵通常具有尺度和带宽很大的特点,应用子域精细积分面临着选择子域的困难.本文采用Householder方法将矩阵三对角化,从而使子
   域精细积分可用于大型有限元系统.通过在子域精细积分中引入预估一校正格式,可以在不需要迭代的情况下得到比蛙跳格式更高的精度.

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