Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-13T11:00:51.909Z Has data issue: false hasContentIssue false

Finite Volume Box Schemes and Mixed Methods

Published online by Cambridge University Press:  15 April 2002

Jean-Pierre Croisille*
Affiliation:
Département de Mathématiques, Université de Metz, 57045 Metz, France. (croisil@poncelet.univ-metz.fr)
Get access

Abstract

We present the numerical analysis on the Poisson problem of two mixed Petrov-Galerkin finite volume schemes for equations in divergence form $\mathop{\rm div}\nolimits\varphi(u,\nabla u)=f$ . The first scheme, which has been introduced in [CITE], is a generalization in two dimensions of Keller's box-scheme. The second scheme is the dual of the first one, and is a cell-centeredscheme for u and the flux φ. For the first scheme, the two trial finite element spaces are the nonconforming space of Crouzeix-Raviartfor the primal unknown u and the div-conformingspace of Raviart-Thomas for the flux φ. The two test spaces are the functions constant per cell both for the conservative and for the fluxequations.We prove an optimal second order error estimate for the box scheme and we emphasize the link between this scheme and the post-processing of Arnold and Brezzi of the classical mixed method.

Information

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable