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The arbitrary order mixed mimetic finite difference method for the diffusion equation

Journal Article · · Mathematical Modelling and Numerical Analysis
DOI:https://doi.org/10.1051/m2an/2015088· OSTI ID:1304825
 [1];  [1];  [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Consiglio Nazionale delle Ricerche (IMATI-CNR), Pavia (Italy); Centro di Simulazione Numerica Avanzata (CeSNA) - IUSS Pavia, Pavia (Italy)
Here, we propose an arbitrary-order accurate mimetic finite difference (MFD) method for the approximation of diffusion problems in mixed form on unstructured polygonal and polyhedral meshes. As usual in the mimetic numerical technology, the method satisfies local consistency and stability conditions, which determines the accuracy and the well-posedness of the resulting approximation. The method also requires the definition of a high-order discrete divergence operator that is the discrete analog of the divergence operator and is acting on the degrees of freedom. The new family of mimetic methods is proved theoretically to be convergent and optimal error estimates for flux and scalar variable are derived from the convergence analysis. A numerical experiment confirms the high-order accuracy of the method in solving diffusion problems with variable diffusion tensor. It is worth mentioning that the approximation of the scalar variable presents a superconvergence effect.
Research Organization:
Los Alamos National Laboratory (LANL)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1304825
Report Number(s):
LA-UR-15-22806
Journal Information:
Mathematical Modelling and Numerical Analysis, Journal Name: Mathematical Modelling and Numerical Analysis Journal Issue: 3 Vol. 50; ISSN 0764-583X
Country of Publication:
United States
Language:
English

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Cited By (5)

Annotations on the virtual element method for second-order elliptic problems preprint January 2016
A high-order discontinuous Galerkin approach to the elasto-acoustic problem preprint January 2018
The virtual element method for resistive magnetohydrodynamics preprint January 2020
The High-Order Mixed Mimetic Finite Difference Method for Time-Dependent Diffusion Problems journal July 2019
The fully nonconforming virtual element method for biharmonic problems journal December 2017

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