Stability of a finite volume scheme for the incompressible fluids

Details Stability of a finite volume scheme for the incompressible fluids Stability of a finite volume scheme for the incompressible fluids

2007-04-05

arxiv.org/abs/0704.0783v2

Mathematics

Numerical Analysis

preprint; 14 pages; no figures

Scientific paper

We introduce a finite volume scheme for the two-dimensional incompressible Navier-Stokes equations. We use a triangular mesh. The unknowns for the velocity and pressure are respectively piecewise constant and affine. We use a projection method to deal with the incompressibility constraint. We show that the differential operators in the Navier-Stokes equations and their discrete counterparts share similar properties. In particular we state an inf-sup (Babuska-Brezzi) condition. Using these properties we infer the stability of the scheme.

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