Title
Physical-bound-preserving finite volume methods for the Nagumo equation on distorted meshes.
Abstract
In this paper, we present a boundedness preserving finite volume scheme for the Nagumo equation. In this method, we use the implicit Euler method for the time discretization, and construct a maximum-principle-preserving discrete normal flux for the diffusion term. For the nonlinear reaction term, we design a type of Picard iteration to ensure that at each iterative step it keeps physical boundedness. Moreover we prove that the numerical solution of the resulting scheme can preserve the bound of the solution for the Nagumo equation on distorted meshes. Some numerical results are presented to verify the theoretical analysis.
Year
DOI
Venue
2019
10.1016/j.camwa.2018.10.038
Computers & Mathematics with Applications
Keywords
Field
DocType
Boundedness,Finite volume,Nagumo equation,Distorted meshes
Discretization,Nonlinear system,Polygon mesh,Mathematical analysis,Fixed-point iteration,Finite volume method,Backward Euler method,Mathematics
Journal
Volume
Issue
ISSN
77
4
0898-1221
Citations 
PageRank 
References 
0
0.34
6
Authors
3
Name
Order
Citations
PageRank
Huifang Zhou110.72
Zhiqiang Sheng212914.39
Guangwei Yuan316523.06