A LATIN computational strategy for multiphysics problems: Application to poroelasticity

D. Dureisseix, P. Ladevèze, B. A. Schrefler

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

Multiphysics phenomena and coupled-field problems usually lead to analyses which are computationally intensive. Strategies to keep the cost of these problems affordable are of special interest. For coupled fluid-structure problems, for instance, partitioned procedures and staggered algorithms are often preferred to direct analysis. In this paper, we describe a new strategy for solving coupled multiphysics problems which is built upon the LArge Time INcrement (LATIN) method. The proposed application concerns the consolidation of saturated porous soil, which is a strongly coupled fluid-solid problem. The goal of this paper is to discuss the efficiency of the proposed approach, especially when using an appropriate time-space approximation of the unknowns for the iterative resolution of the uncoupled global problem. The use of a set of radial loads as an adaptive approximation of the solution during iterations will be validated and a strategy for limiting the number of global resolutions will be tested on multiphysics problems.

Original languageEnglish (US)
Pages (from-to)1489-1510
Number of pages22
JournalInternational Journal for Numerical Methods in Engineering
Volume56
Issue number10
DOIs
StatePublished - Mar 14 2003

Keywords

  • Consolidation
  • Coupled field
  • Fluid-structure interaction
  • LATIN
  • Multiphysics
  • Porous media

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Computational Mechanics
  • Applied Mathematics

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