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Adaptive hybrid (prismatic–tetrahedral) grids for incompressible flows

✍ Scribed by Alice J. Chen; Yannis Kallinderis

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
579 KB
Volume
26
Category
Article
ISSN
0271-2091

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✦ Synopsis

Hybrid grids consisting of prisms and tetrahedra are employed for the solution of the 3-D Navier -Stokes equations of incompressible flow. A pressure correction scheme is employed with a finite volume -finite element spatial discretization. The traditional staggered grid formulation has been substituted with a collocated mesh approach which uses fourth-order artificial dissipation. The hybrid grid is refined adaptively in local regions of appreciable flow variations. The scheme operations are performed on an edge-wise basis which unifies treatment of both types of grid elements. The adaptive method is employed for incompressible flows in both single and multiply-connected domains.

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