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Convergence analysis of a colocated finite volume scheme for the incompressible Navier-Stokes equations on general 2 or 3D meshes

Abstract : We study a colocated cell centered finite volume method for the approximation of the incompressible Navier-Stokes equations posed on a 2D or 3D finite domain. The discrete unknowns are the components of the velocity and the pressures, all of them colocated at the center of the cells of a unique mesh; hence the need for a stabilization technique, which we choose of the Brezzi-Pitkäranta type. The scheme features two essential properties: the discrete gradient is the transposed of the divergence terms and the discrete trilinear form associated to nonlinear advective terms vanishes on discrete divergence free velocity fields. As a consequence, the scheme is proved to be unconditionally stable and convergent for the Stokes problem, the steady and the transient Navier-Stokes equations. In this latter case, for a given sequence of approximate solutions computed on meshes the size of which tends to zero, we prove, up to a subsequence, the $L^2$-convergence of the components of the velocity, and, in the steady case, the weak $L^2$-convergence of the pressure. The proof relies on the study of space and time translates of approximate solutions, which allows the application of Kolmogorov's theorem. The limit of this subsequence is then shown to be a weak solution of the Navier-Stokes equations. Numerical examples are performed to obtain numerical convergence rates in both the linear and the nonlinear case.
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https://hal.archives-ouvertes.fr/hal-00004841
Contributor : Raphaele Herbin Connect in order to contact the contributor
Submitted on : Wednesday, April 30, 2008 - 6:54:17 PM
Last modification on : Saturday, January 15, 2022 - 4:15:13 AM
Long-term archiving on: : Tuesday, September 21, 2010 - 4:20:38 PM

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Robert Eymard, Raphaele Herbin, Jean-Claude Latché. Convergence analysis of a colocated finite volume scheme for the incompressible Navier-Stokes equations on general 2 or 3D meshes. SIAM Journal on Numerical Analysis, Society for Industrial and Applied Mathematics, 2007, 45 (1), pp.1-36. ⟨10.1137/040613081⟩. ⟨hal-00004841v2⟩

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