A Bilinear Immersed Finite Volume Element Method for the Diffusion Equation with Discontinuous Coefficient

A Bilinear Immersed Finite Volume Element Method for the Diffusion Equation with Discontinuous Coefficient

Year:    2009

Communications in Computational Physics, Vol. 6 (2009), Iss. 1 : pp. 185–202

Abstract

This paper is to present a finite volume element (FVE) method based on the bilinear immersed finite element (IFE) for solving the boundary value problems of the diffusion equation with a discontinuous coefficient (interface problem). This method possesses the usual FVE method's local conservation property and can use a structured mesh or even the Cartesian mesh to solve a boundary value problem whose coefficient has discontinuity along piecewise smooth nontrivial curves. Numerical examples are provided to demonstrate features of this method. In particular, this method can produce a numerical solution to an interface problem with the usual O(h2) (in L2 norm) and O(h) (in H1 norm) convergence rates.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2009-CiCP-7677

Communications in Computational Physics, Vol. 6 (2009), Iss. 1 : pp. 185–202

Published online:    2009-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    18

Keywords:    Interface problems immersed interface finite volume element discontinuous coefficient diffusion equation.