A Numerical model based on the mixed interface-tracking/interface-capturing technique (MITICT) for flows with fluid-solid and fluid-fluid interfaces

Marcela A. Cruchaga, Diego J. Celentano, Tayfun E. Tezduyar

Research output: Contribution to journalArticle

25 Citations (Scopus)


We propose a numerical model for computation of flow problems that involve both fluid-solid and fluid-fluid interfaces. The model is based on the mixed interface-tracking/interface-capturing technique (MITICT), which was introduced earlier for problems that involve both fluid-solid interfaces that are accurately tracked with a moving mesh method and fluid-fluid interfaces that are too complex to track and therefore treated with an interface-capturing technique. In our numerical model, fluid-solid interfaces are handled with the moving Lagrangian interface technique (MLIT) and fluid-fluid interfaces with the edge-tracked interface locator technique (ETILT). The mixed technique is tested in computation of a fluid-particle interaction problem in the presence of a fluid-fluid interface impacted by the particle.

Original languageEnglish
Pages (from-to)1021-1030
Number of pages10
JournalInternational Journal for Numerical Methods in Fluids
Issue number6-8
Publication statusPublished - 2007 Jul 20
Externally publishedYes



  • Fluid-fluid interface
  • Fluid-particle interaction
  • Fluid-solid interface
  • MLIT

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics

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