Characteristic-Galerkin and Galerkin/least-squares space-time formulations for the advection-diffusion equation with time-dependent domains

O. Pironneau, J. Liou, Tayfun E. Tezduyar

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

For the advection-diffusion equation, the characteristic-Galerkin formulations are obtained by temporal discretization of the total derivative. These formulations, by construction, are Eulerian-Lagrangian, and therefore can handle time-dependent domains without difficulty. The Galerkin/least-squares space-time formulation, on the other hand, is written over the space-time domain of a problem, and therefore can handle time-dependent domains with no implementational difficulty. The purpose of this paper is to compare these two formulations based on error estimates and numerical performance, in the context of the advection-diffusion equation.

Original languageEnglish
Pages (from-to)117-141
Number of pages25
JournalComputer Methods in Applied Mechanics and Engineering
Volume100
Issue number1
DOIs
Publication statusPublished - 1992
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

Cite this