Title
The finite volume scheme preserving maximum principle for two-dimensional time-fractional Fokker–Planck equations on distorted meshes
Abstract
In this paper, we develop a nonlinear finite volume scheme preserving maximum principle for 2D time fractional Fokker–Planck equations on distorted meshes. The characteristic of our method is that it satisfies the discrete maximum principle such that it keeps physical boundedness such as concentration, temperature and density, etc. The analysis is based on an adaptive approach of choosing stencil to construct a maximum-principle-preserving discrete normal flux for diffusive flux. For the advection term, we use the second-order upwind method with proper slope limiter. The fractional derivative is approximated through L1-scheme. The advantages of our scheme are that it is locally conservative and can be applied to distorted meshes with no severe constraint on the time step. Numerical results verify the theoretical result and show that our scheme can preserve discrete maximum principle.
Year
DOI
Venue
2019
10.1016/j.aml.2019.05.030
Applied Mathematics Letters
Keywords
Field
DocType
Time-fractional Fokker–Planck equations,Maximum principle,Finite volume scheme,Distorted meshes
Fokker–Planck equation,Nonlinear system,Maximum principle,Polygon mesh,Mathematical analysis,Stencil,Fractional calculus,Finite volume method,Flux limiter,Mathematics
Journal
Volume
ISSN
Citations 
97
0893-9659
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Xuehua Yang1455.38
Haixiang Zhang26412.19
Qi Zhang3931179.66
Guangwei Yuan416523.06
Zhiqiang Sheng512914.39