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

โœ Scribed by A.F. Shinn; M.A. Goodwin; S.P. Vanka


Book ID
103831911
Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
859 KB
Volume
52
Category
Article
ISSN
0017-9310

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โœฆ Synopsis


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.


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