A moving Lagrangian interface technique for flow computations over fixed meshes

Marcela Cruchaga, Diego Celentano, Tayfun E. Tezduyar

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

In this paper, an enhanced finite element formulation for unsteady incompressible flows with moving interfaces is presented. The weak form of the Navier-Stokes equations, written using a generalized streamline operator technique, is coupled with the movement of the interface between two immiscible fluids defined through an independent moving mesh. The position of the interface is updated using a Lagrangian formulation. In this framework, a global mass conservation corrector algorithm and an enhanced element integration technique are proposed to improve accuracy. The method is applied to a number of test problems with moving interfaces.

Original languageEnglish
Pages (from-to)525-543
Number of pages19
JournalComputer Methods in Applied Mechanics and Engineering
Volume191
Issue number6-7
DOIs
Publication statusPublished - 2001 Dec 7
Externally publishedYes

Fingerprint

Incompressible flow
Navier Stokes equations
mesh
Conservation
Fluids
formulations
incompressible flow
Navier-Stokes equation
conservation
operators
fluids

Keywords

  • Fixed mesh
  • Incompressible flow
  • Moving interface

ASJC Scopus subject areas

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

Cite this

A moving Lagrangian interface technique for flow computations over fixed meshes. / Cruchaga, Marcela; Celentano, Diego; Tezduyar, Tayfun E.

In: Computer Methods in Applied Mechanics and Engineering, Vol. 191, No. 6-7, 07.12.2001, p. 525-543.

Research output: Contribution to journalArticle

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