Immersed boundary computations of shear- and buoyancy-driven flows in complex enclosures

A. F. Shinn, M. A. Goodwin, S. P. Vanka

Research output: Contribution to journalArticlepeer-review

Abstract

Cartesian grids used with the immersed boundary method (IBM) offer an attractive alternative for simulating fluid flows in complex geometries. We present a ghost fluid method for incompressible flows solved with staggered grids. The primary feature is the satisfaction of local mass continuity for ghost pressure cells, rather than extrapolating the pressures from within the flow domain. The method preserves local continuity in each cell and also global continuity. As a result, no explicit mass sources or sinks are needed. We have applied the method to study shear- and buoyancy-driven flows in a number of complex cavities.

Original languageEnglish (US)
Pages (from-to)4082-4089
Number of pages8
JournalInternational Journal of Heat and Mass Transfer
Volume52
Issue number17-18
DOIs
StatePublished - Aug 2009

Keywords

  • Complex geometries
  • Immersed boundary method

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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