An accurate and efficient frontal solver for fully-coupled hygro-thermo-mechanical problems

Mauro Bianco, Gianfranco Bilardi, Francesco Pesavento, Geppino Pucci, Bernhard A. Schrefler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Solving fully-coupled non-linear hygro-thermo-mechanical problems relative to the behavior of concrete at high temperatures is nowadays a very interesting and challenging computational problem. These models require an extensive use of computational resources, such as main memory and computational time, due to the great number of variables and the numerical characteristics of the coefficients of the linear systems involved. In this paper a number of different variants of a frontal solver used within HITECOSP, an application developed within the BRITE Euram III "HITECO" EU project, to solve multiphase porous media problems, are presented, evaluated and compared with respect to their numerical accuracy and performance. The final result of this activity is a new solver which is both much faster and more accurate than the original one. Specifically, the code runs over 5 times faster and numerical errors are reduced of up to three order of magnitude.

Original languageEnglish (US)
Title of host publicationComputational Science, ICCS 2002 - International Conference, Proceedings
PublisherSpringer-Verlag
Pages733-742
Number of pages10
EditionPART 1
ISBN (Print)3540435913, 9783540435914
DOIs
StatePublished - 2002
EventInternational Conference on Computational Science, ICCS 2002 - Amsterdam, Netherlands
Duration: Apr 21 2002Apr 24 2002

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 1
Volume2329 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Other

OtherInternational Conference on Computational Science, ICCS 2002
CountryNetherlands
CityAmsterdam
Period4/21/024/24/02

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)

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