Computation of incompressible flows with immersed bodies by a simple ghost cell method

Dartzi Pan, Tzung Tza Shen

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The incompressible Navier-Stokes equations are solved by an implicit pressure correction method on Cartesian meshes with local refinement. A simple and stable ghost cell method is developed to treat the boundary condition for the immersed bodies in the flow field. Multigrid methods are developed for both velocity and pressure correction to enhance the stability and convergence of the solution process. It is shown that the spatial accuracy of the method is second order in L2 norm for both velocity and pressure. Various steady and unsteady flows over a 2D circular cylinder and a 3D sphere are computed to validate the present method. The capability of the present method to treat a moving body is also demonstrated.

Original languageEnglish
Pages (from-to)1378-1401
Number of pages24
JournalInternational Journal for Numerical Methods in Fluids
Volume60
Issue number12
DOIs
Publication statusPublished - 2009 Aug 30

All Science Journal Classification (ASJC) codes

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

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