Convergence for an Immersed Finite Volume Method for Elliptic and Parabolic Interface Problems
Champike Attanayake and
Deepthika Senaratne
Journal of Mathematics Research, 2024, vol. 15, issue 2, 19
Abstract:
In this article we analyze an immersed interface finite volume method for second order elliptic and parabolic interface problems. We show the optimal convergence of the elliptic interface problem in L^2 and energy norms. For the parabolic interface problem, we prove the optimal order in L^2 and energy norms for piecewise constant and variable diffusion coefficients respectively. Furthermore, for the elliptic interface problem, we demonstrate super convergence at element nodes when the diffusion coefficient is a piecewise constant. Numerical examples are also provided to confirm the optimal error estimates.
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:ibn:jmrjnl:v:15:y:2024:i:2:p:19
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