Hostname: page-component-74656f9884-j7cmm Total loading time: 0 Render date: 2026-11-10T09:28:16.430Z Has data issue: false hasContentIssue false

New mixed finite volume methods for second ordereliptic problems

Published online by Cambridge University Press:  23 February 2006

Kwang Y. Kim*
Affiliation:
Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 305-701 South Korea. toheart@acoustic.kaist.ac.kr
Get access

Abstract

In this paper we introduce and analyze new mixed finite volume methods for second order elliptic problemswhich are based on H(div)-conforming approximations for the vector variable anddiscontinuous approximations for the scalar variable.The discretization is fulfilled by combining the ideas of the traditional finite volume box method andthe local discontinuous Galerkin method.We propose two different types of methods, called Methods I and II, and show that they have distinct advantagesover the mixed methods used previously.In particular, a clever elimination of the vector variable leads to a primal formulation for the scalar variablewhich closely resembles discontinuous finite element methods.We establish error estimates for these methods that are optimal for the scalar variable in both methodsand for the vector variable in Method II.

Information

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2006

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